{"title":"Electronics","description":"\u003cp\u003eVarious electronic items\u003c\/p\u003e","products":[{"product_id":"george-hines-trs-80-floppy-remapper","title":"George Hines TRS-80 Floppy remapper","description":"\u003cdiv dir=\"auto\" class=\"markdown-heading\"\u003e\n\u003cp dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eThis item has been greatly impacted by tariffs -\u003ca href=\"https:\/\/tucs-workbench.com\/that-nasty-word-tariffs\/\" title=\"https:\/\/tucs-workbench.com\/that-nasty-word-tariffs\/\" rel=\"noopener\" target=\"_blank\"\u003e https:\/\/tucs-workbench.com\/that-nasty-word-tariffs\/\u003c\/a\u003e\u003c\/p\u003e\n\u003ch1 dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eIntroduction\u003c\/h1\u003e\n\u003cp dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eThe TRS-80 floppy remapper is a simple board (and microcontroller) which dynamically remaps the floppy disk drives in vintage\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/TRS-80\"\u003eTRS-80\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ecomputers.\u003c\/p\u003e\n\u003cp dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eThe main reason for remapping the floppy drives on these computers is to enable booting from drives other than the fixed internal drive 0. This is particualy useful when paired with a modern external floppy disk emulator such as the\u003cspan\u003e \u003c\/span\u003e\u003ca rel=\"nofollow\" href=\"http:\/\/hxc2001.free.fr\/floppy_drive_emulator\/\"\u003eUSB HxC emulator\u003c\/a\u003e. This avoids the need to take apart the computer, swap cables or replace your internal vintage floppy drives.\u003c\/p\u003e\n\u003ch1 dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eFeatures\u003c\/h1\u003e\n\u003col\u003e\n\u003cli dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eShould work in the TRS-80 model 3, model 4, model 4 gate-array, model 4P, and model 4P gate-array computers\u003c\/li\u003e\n\u003cli dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eEight different floppy drive mappings are supported, allowing booting from any drive (0-3) with a choice of two different maps for each boot drive. This map can be as simple as swapping drives 0 and 1 (useful perhaps if they are different types).\u003c\/li\u003e\n\u003cli dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eMappings are controlled via software using a simple \"out\" command (conveniently in Basic). You can set the current map (which will survive a computer reset), or set the default map (to be used upon computer power on).\u003c\/li\u003e\n\u003cli dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eAn optional disable switch can be installed (if desired).\u003c\/li\u003e\n\u003cli dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eAs a bonus for Model 4P users, this board adds support for two external floppy drives (which previously only supported two internal drives). Inspiration for this feature came from a magazine article in\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003ca style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\" rel=\"nofollow\" href=\"https:\/\/colorcomputerarchive.com\/repo\/Documents\/Magazines\/80%20Micro\/1986\/80%20Micro%20-%208601%20-%20January%201986.pdf\"\u003e80 Micro (January 1986)\u003c\/a\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e, while significantly reducing the modifications needed.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eOptional (limited) motor control is supported, turning on drive motors only when they are accessed. This is useful to avoid wear and tear on your internal floppy drives when primarily using external (likely virtual) drives.\u003c\/li\u003e\n\u003cli dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eLEDs on the board display the current map, default map, enable status, and mode. Sadly the LEDs are not visible when the computer is assembled (but they are useful for debugging, are pretty colors, and they blink).\u003c\/li\u003e\n\u003cli dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eWhen booting from a\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003ca style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\" rel=\"nofollow\" href=\"http:\/\/bartlettlabs.com\/M3SE\/\"\u003eM3SE\u003c\/a\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eor\u003c\/span\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003ca style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\" rel=\"nofollow\" href=\"http:\/\/www.vecoven.com\/trs80\/trs80.html\"\u003eFreHD\u003c\/a\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e, the remapper can be used to conveniently remap the two internal drives (as the remaining drives are allocated to Hard Disks).\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"auto\" class=\"heading-element\" tabindex=\"-1\"\u003eI've made every attempt to make the board \"easy\" to install (or remove) with the mimimum number of board changes. On most models, you only need to install one socket (while two models require a single jumper wire). Other features are optional.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e(Created by George Hines (\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003emrthreeplates on Github), re-entered into EDA by Tuc's Workbench. Produced by a 3rd party PCB Assembly facility. Produced with George Hines's permission)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Tucs Workbench","offers":[{"title":"Default Title","offer_id":44412109914285,"sku":"","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/462647467_951622673530266_4749034754760493587_n.jpg?v=1734447172"},{"product_id":"replica-archer-mini-amplifier-speaker","title":"Replica Archer Mini Amplifier Speaker","description":"\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eRelive the classic TRS-80 Model I\/III\/4 sound with the RetroStack Amplifier Replica!\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eThis replica faithfully recreates the look and feel of the original Archer speaker\/amplifier. Featuring an internal speaker and the option to connect an external speaker via a standard 3.5mm mono jack, it's powered by a 9V battery (not included). Unlike the original's beige-gray, this stylish replica is painted gray to perfectly match your Model I\/III case. \u003c\/span\u003e\u003c\/span\u003e\u003cem\u003e\u003cspan\u003e\u003cspan class=\"\"\u003e(A DIN-5 to 3.5mm mono audio cable, sold separately, is required for connection to your TRS-80.)\u003c\/span\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eBring back the authentic sound of the TRS-80 Model I era! Order your RetroStack Amplifier Replica today and complete your vintage computing setup. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eNOTE: Only 1 complete unit per order. Pictures are grouped to show multiple items at once\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003e(This was designed and produced by Marcel Erz (Retrostack on Github) and resold)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"RetroStack","offers":[{"title":"Clear","offer_id":44372295614637,"sku":null,"price":67.0,"currency_code":"USD","in_stock":false},{"title":"Silver","offer_id":44372295647405,"sku":null,"price":60.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/491024562_1252487686211158_7015849425939892721_n.jpg?v=1744809173"},{"product_id":"trs-80-model-i-dual-switching-power-supply","title":"TRS-80 Model I DUAL Switching Power Supply","description":"\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eModernize your TRS-80 Model I power with this dual-supply upgrade!\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eThis custom-designed power supply replaces the original TRS-80 Model I power brick, providing power to both the TRS-80 Model I and Expansion Interface simultaneously. Weighing only 10oz (including the wall wart), it runs cool and silently. The compact design fits neatly within the Expansion Interface, with cables precisely sized to reach both power jacks. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eExperience the ultimate in TRS-80 Model I power! Order your dual power supply today.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003e(This is sourced from Dustys Vintage Workshop and resold)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Dusty2050","offers":[{"title":"Default Title","offer_id":44400939368621,"sku":"","price":114.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/s-l140_1.webp?v=1745678862"},{"product_id":"trs-80-model-i-switching-power-supply","title":"TRS-80 Model I Switching Power Supply","description":"\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eUpgrade your TRS-80 Model I with this superior replacement power supply!\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eThis modern replacement power supply offers significant improvements over the original TRS-80 Model I power brick. Weighing only 10oz (including the wall wart), it runs cooler and operates silently. This is the perfect solution for breathing new life into your Model I, whether it's a simple upgrade or a necessary replacement.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eGive your TRS-80 Model I the power upgrade it deserves! Order your replacement power supply today.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003e(This was sourced from Dustys Vintage Workshop and is being resold)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Dusty2050","offers":[{"title":"Default Title","offer_id":44400943956141,"sku":"","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/s-l1600_1.webp?v=1745679167"},{"product_id":"rgbtohdmi-with-raspberry-pi-analog-converter-and-3d-case","title":"RGBtoHDMI with Raspberry Pi , Analog Converter and 3D case","description":"\u003cp\u003e \u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003ch1\u003eFeatures:\u003c\/h1\u003e\n\u003cp\u003el The product is brand new and has pixel perfect output, it looks like an emulator output.\u003c\/p\u003e\n\u003cp\u003el This is a complete RGB to HDMI unit with the optional Analog board\u003c\/p\u003e\n\u003cp\u003el HDMI output at full HD 1920x1080p (goes up to 2560 x 1440)\u003c\/p\u003e\n\u003cp\u003el English on screen menu\u003c\/p\u003e\n\u003cp\u003el No frame drops, repeats or tears\u003c\/p\u003e\n\u003cp\u003el Very low lag (4ms)\u003c\/p\u003e\n\u003cp\u003el Easy to select from many computer profiles (see list below)\u003c\/p\u003e\n\u003cp\u003el Optional scanlines\u003c\/p\u003e\n\u003cp\u003el Open hardware, open source!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe RGB to HDMI project supports many classic computers, but this auction is for a version that includes the optional analog board.\u003c\/p\u003e\n\u003cp\u003eComputers supported by this configuration (6 way IDC connection):\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e  Amstrad CPC\u003c\/li\u003e\n\u003cli\u003e  Spectrum +2 (grey), +2A, +3 and Sinclair QL (Analog RGB)\u003c\/li\u003e\n\u003cli\u003e  Oric 1 \/ Atmos (3 bit RGB TTL)\u003c\/li\u003e\n\u003cli\u003e  Camputers Lynx (3 bit RGB TTL)\u003c\/li\u003e\n\u003cli\u003e  Sharp MZ700 (3 bit RGB TTL)\u003c\/li\u003e\n\u003cli\u003e  Tandy color computer 3 (Analog RGB)\u003c\/li\u003e\n\u003cli\u003e  48K Spectrum (Analog YUV)\u003c\/li\u003e\n\u003cli\u003e  Atom (Analog YUV)\u003c\/li\u003e\n\u003cli\u003e  Dragon 32 (Analog YUV)\u003c\/li\u003e\n\u003cli\u003e  PAL Tandy color computer 1\/2\/MC10 (Analog YUV)\u003c\/li\u003e\n\u003cli\u003e  NTSC Tandy color computer 1\/2\/MC10 (Analog YUV)\u003c\/li\u003e\n\u003cli\u003e  LumaCode \/ Apple II \/ ZX80 \/ ZX81 \/ UK101 \/ Nascom \/ Superboard II or any other mono computer\u003c\/li\u003e\n\u003cli\u003e  TRS80 Model 1 (Mono) \/ Video Genie\u003c\/li\u003e\n\u003cli\u003e  Commodore 64 (with c0pperdragon's YUV interface)\u003c\/li\u003e\n\u003cli\u003e  Atari 800XL (with c0pperdragon's A-VideoBoard YUV interface)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  To find information on building cables enter into your Google Search \"hoglet67 RGBtoHDMI wiki Cables\"  The first result will be a wiki page on building cables.\u003c\/p\u003e\n\u003cp\u003eThe RGBtoHDMI interface converts the  RGB video signal from vintage computers like the Tandy Color Computer to DVI compatible with most modern TVs\/Monitors. The interface comprises a Raspberry Pi Zero and a specially designed Hat containing a small CPLD. Custom firmware on the Raspberry Pi, in conjunction with the CPLD, is able to correctly sample each of the supported video modes to give a pixel-perfect rendition. The HDMI output is locked to the input so there are no frame drops, repeats or tears and it also has low lag of around 4 milliseconds (less than a quarter of a frame.\u003c\/p\u003e\n\u003cp\u003eOne unusual feature of the converter is optional integer scaling where one original pixel on the computer is scaled to an exact number of lcd pixels without using any interpolation filtering. This results in the low resolution output from real hardware looking as clean and sharp as sources output at the native resolution of the lcd.\u003c\/p\u003e\n\u003cp\u003ePacking includes:\u003c\/p\u003e\n\u003cp\u003e1 x HD Video Output Converter Board (includes the raspberry pi zero)\u003c\/p\u003e\n\u003cp\u003e1 x Analog Board (this is included in the case)\u003c\/p\u003e\n\u003cp\u003eSD Card\u003c\/p\u003e\n\u003cp\u003e5V Micro USB Power Adapter\u003c\/p\u003e\n\u003cp\u003e(We are reselling an item sourced via Tindie user \u003cmeta charset=\"utf-8\"\u003ePressStart)\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Default Title","offer_id":44723754434733,"sku":null,"price":99.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/e103bd24-3697-4770-930c-5996cc57ef5c.jpg?v=1753293398"},{"product_id":"tw-lndoubler-5-8","title":"TW LNDoubler 5\/8","description":"\u003ch1 style=\"text-align: center;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eThe ultimate in double\u003c\/h1\u003e\n\u003ch1 style=\"text-align: center;\"\u003edensity adapter units\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis is a Tuc's Workbench remix of the LNDoubler 5\/8 (Also known at \"The Switch\") from the LNW Research Corp. \u003c\/p\u003e\n\u003cp\u003eFrom the original description -\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe LNDOUBLER 5\/8 switches your TRS80 MODEL I or LNW80 computer into the most versatile computer you can own. Whether you want single sided, double sided, single or double density,5 or 8 inch disk operation,any combination of disk storage is possible with the LNDOUBLER 5\/8. Each of your present 40 track single sided disk drives will store up to 184,320 bytes (formatted)-thats an 80% increase! The LNDOUBLER 5\/8 even allows you to BOOT from an 8\" system disk with a flip of a switch.The  LNDOUBLER 5\/8 is compatible with all software available for 5\" single and double density,8\" single and double density written for the TRS80.\u003c\/p\u003e\n\u003cp\u003eThe LNDOUBLER 5\/8 is easy to install.There are no traces to cut,no soldering or wiring.Just unplug the floppy controller IC (FD1771) from your interface, install the FD1771 into the LNDOUBLER 5\/8, and just plug the LNDOUBLER 5\/8 into the\u003cbr\u003einterface.In just a few minutes you'll be enjoying your computer as never before.\u003cbr\u003eThe LNDOUBLER 5\/8 is the most technically advanced, tested and reliable double density board you can own.The LNDOUBLER 5\/8 has more features, more capabilities, and more software support than any product of it's kind.\u003cbr\u003e\u003cbr\u003eFEATURES\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e* RELIABLE OPERATION GUARANTEED WITH ALL 5.25\" and 8\" DISK DRIVES\u003cbr\u003e* SINGLE AND DOUBLE DENSITY OPERATION\u003cbr\u003e* 5.25\" AND 8\" IN ANY MIX\u003cbr\u003e* READ MODEL I,II,III DISKS\u003cbr\u003e* 5.25\" AND 8\" SYSTEM DISKS\u003cbr\u003e* ANALOG PHASE LOCK LOOP DATA SEPARATION\u003cbr\u003e* PRECISION WRITE PRECOMPENSATION\u003cbr\u003e* REGULATED SUPPLY FOR VCO AND ALIGNMENT CIRCUITS\u003cbr\u003e* GUARANTEED OPERATION WITH ALL TRS8Ø EXPANSION INTERFACE UNITS\u003cbr\u003e* ALL GOLD CONTACTS\u003cbr\u003e* GUARANTEED OPERATION AT 4.Ø MHZ CPU SPEED\u003cbr\u003e* COMPATIBLE WITH ALL SINGLE, DOUBLE AND 8\" DRIVE SOFTWARE\u003cbr\u003e* EASY INSTALLATION\u003cbr\u003e* FIVE INCH DISK STORAGE INCREASED TO :\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e161,280 bytes- 35 track ss\/dd\u003c\/li\u003e\n\u003cli\u003e322,560 bytes- 35 track ds\/dd\u003c\/li\u003e\n\u003cli\u003e184,320 bytes- 40 track ss\/dd\u003c\/li\u003e\n\u003cli\u003e368,640 bytes- 40 track ds\/dd\u003c\/li\u003e\n\u003cli\u003e368,640 bytes- 80 track ss\/dd\u003c\/li\u003e\n\u003cli\u003e737,280 bytes- 80 track ds\/dd\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e* EIGHT INCH DISK STORAGE INCREASED TO:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e335,104 bytes- 77 track ss\/sd\u003c\/li\u003e\n\u003cli\u003e670,208 bytes -77 track ds\/sd\u003c\/li\u003e\n\u003cli\u003e591,360 bytes -77 track ss\/dd\u003c\/li\u003e\n\u003cli\u003e1,182,720 bytes -77 track ds\/dd\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003ess: single sided         sd: single density       ds: dual sided       dd: double density\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eMEDIA AND DRIVE REQUIREMENTS\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eSince the LNDOUBLER 5\/8 will work with virtually any drive and any media, it may be tempting to use (for example) low cost single density single sided 35 track diskettes with 80 track, double density double sided drives. On the other hand, experimentation to find out which diskettes work the best, may lead to the conclusion that any diskettes will work. For this reason we at LNW RESEARCH make the following suggestions:\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e1.Use double density rated disk drives. Single density drives may work, but the proper operation in double density cannot be guaranteed for the life of the drive.\u003cbr\u003e2.Use diskettes rated according to their use\u003cbr\u003e3.Check diskettes for wear periodically\u003cbr\u003e4.Clean and align your disk drive (s) according to the\u003cbr\u003emanufacturer's recommendations.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003e\u003cstrong\u003e***NOTE*** \u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e- These units are NOT just plug and play. Given their nature, they need to be adjusted. You will need -\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eDigital voltmeter 1% accuracy \u0026gt;1megohm input impedance \u003c\/li\u003e\n\u003cli\u003eFrequency counter .1% accuracy \u0026gt;1k ohm input \u0026gt;5mhz\u003c\/li\u003e\n\u003cli\u003eOscilloscope \u0026gt;15mhz bandwidth ,triggered\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you do not own these, or do not feel comfortable using them, \u003cspan style=\"text-decoration: underline; color: rgb(36, 31, 31);\"\u003e\u003cem\u003e\u003cstrong\u003ePLEASE DO NOT ORDER.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e  We are not pre-adjusting them. I'd rather miss out a sale than have you unhappy. \u003c\/p\u003e\n\u003cp\u003eThere are 2 models. If you already own a FD1791 or compatible 40 pin chip, you don't need to pay the added expense of receiving another. If you don't, then order with the FD1791 or compatible chip.\u003c\/p\u003e\n\u003cp\u003eOrder today!\u003c\/p\u003e\n\u003cp\u003e(This was copied from the LNW Documentation available in \"LNW80 Technical Reference Manual\" and slightly updated. Tuc's Workbench has the board made and partially populated at the factory, with the rest done in the warehouse)\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Without FD1791\/compatible chip","offer_id":44911829876909,"sku":null,"price":149.99,"currency_code":"USD","in_stock":true},{"title":"With FD1791\/compatible chip","offer_id":44911829909677,"sku":null,"price":179.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/20250910_150251.jpg?v=1757883348"},{"product_id":"blue-print-trs-80-composite-video-board","title":"BLUE-PRINT TRS-80 Composite Video Board","description":"\u003cp class=\"item-intro text-muted\"\u003e\u003cstrong\u003eComposite Video Mixer for Tandy\/Radio Shack TRS-80 Model II\/III\/4\/4P computers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis composite video mixer board combines the video signals of a TRS-80 Model II, III, 4 or 4P computer into a monochrome composite video signal. \u003c\/p\u003e\n\u003cp\u003eA very handy tool to have if you often work on those types of computers! You can just put aside that big annoying CRT top part of the computer's case that always seems to be in the way while working, and just use another monitor with a composite video cable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant note:\u003c\/strong\u003e\u003cbr\u003eThis solution is not compatible with all monitors! Please ask. These also haven't been tested at publication time, but we will not ship until we are back from Tandy Assembly 2025 and tested them. If your order is cancelled, this is why.\u003c\/p\u003e\n\u003cp\u003e(This was designed by Blue-print in Belgium. We have sent it for PCB creation and population with their approval)\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Default Title","offer_id":44911867363501,"sku":null,"price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/20250910_153452.jpg?v=1757884019"},{"product_id":"x-mem-80-trs-80-model-i-memory-upgrade","title":"X-Mem\/80 TRS-80 Model I memory upgrade","description":"\u003cp dir=\"auto\"\u003eX-MEM\/80 is a 512 KB paged memory expansion for the TRS-80 Model 1 and Model III.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eIt is partially SuperMem compatible, as it allows to \"bank\" the upper 32 KBs (address range from\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0x8000\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eto\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0xFFFF\u003c\/code\u003e) with the memory on the card.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eA jumper allows configuration in two different modes -\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSuperMem\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX-MEM\/80\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodes:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003ein\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSuperMem mode\u003c\/strong\u003e, it offers\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e16 pages of 32 KBs\u003c\/strong\u003e, which are mapped into the\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0x8000\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eto\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0xFFFF\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003e(= upper 32 KB) range. To select the page number,\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003eout 67,\u0026lt;page number\u0026gt;\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eis used. The page number can also be read back via\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003einp 67\u003c\/code\u003e.\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eUnlike SuperMem, X-MEM\/80 does not allow to bank the lower 32 KBs of the Model 1 memory.\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003eHowever, the existing SuperMem software (see below) doesn't seem to use this mode anyway, and works fine with X-MEM\/80's SuperMem mode.\u003c\/li\u003e\n\u003cli\u003ein\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX-MEM\/80 mode\u003c\/strong\u003e, it offers\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e32 pages of 16 KBs\u003c\/strong\u003e, which can be mapped to the lower and higher 16 KB page of the upper 32 KB range, i.e., the lower 16 KB page from\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0x8000\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eto\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0xBFFF\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eand the higher 16 KB page from\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0xC000\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eto\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0xFFFF\u003c\/code\u003e. To select the lower 16 KB page,\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003eout 65, \u0026lt;lower page number\u0026gt;\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eis used, and\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003eout 66, \u0026lt;higher page number\u0026gt;\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003efor the higher 16 KB page. Note that it is possible to map the same pysical 16 KB page into both the lower and higher address range (but this is usually not desirable).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e(This was designed by \u003cmeta charset=\"utf-8\"\u003e\u003ca data-target=\"context-region-crumb.linkElement\" data-analytics-event='{\"category\":\"SiteHeaderComponent\",\"action\":\"context_region_crumb\",\"label\":\"lambdamikel\",\"screen_size\":\"full\"}' href=\"https:\/\/github.com\/lambdamikel\" aria-current=\"page\" id=\"contextregion-usercrumb-lambdamikel-link\" data-view-component=\"true\" class=\"AppHeader-context-item\"\u003e\u003cspan data-target=\"context-region-crumb.labelElement\" class=\"AppHeader-context-item-label\"\u003elambdamikel\u003c\/span\u003e\u003c\/a\u003e on Github, produced by a 3rd party PCB facility, and used with permission)\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Bare Board","offer_id":44973072122029,"sku":null,"price":9.99,"currency_code":"USD","in_stock":true},{"title":"Fully Populated Board","offer_id":45186108653741,"sku":null,"price":57.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/769ade2f-705b-438b-b232-3fb1d63b323a.jpg?v=1759369363"},{"product_id":"david-gesswein-mfm_emu-mfm-hard-disk-reader-emulator","title":"David Gesswein mfm_emu MFM Hard Disk Reader\/Emulator","description":"\u003cp\u003eThis unit is intended to read MFM hard drives for archiving and to emulate one or two MFM hard drives to replace failing MFM drives. The image read from a real hard drive can be used for the emulation.\u003c\/p\u003e\n\u003cp\u003eIn theory the unit can emulate any MFM hard drive. In practice there are enough variations in how controllers use the drives that software changes have been needed to make it work with some systems. You will need to use a command line to operate the unit for reading disks and to configure it for emulating disks.\u003c\/p\u003e\n\u003cp\u003eIt should be able to read and save the raw transition data from most any hard drive using the ST506\/ST412 interface. \u003c\/p\u003e\n\u003cp\u003ePeople are still running across formats it can't decode to sector data. For formats that are minor variations adding support doesn't take too long for the original author to do (We've had him add one for us and it was slightly over a week). For some controllers which did their own undocumented thing it can be significant effort to figure out the format. Handling physical to logical translation that some smart controllers did or any file system interpretation is outside the scope of the project.\u003c\/p\u003e\n\u003cp\u003eThis system is a fully completed board with a Beagle Bone Black with the latest release and supported OS already on it. \u003c\/p\u003e\n\u003cp\u003e(This is sourced from the original developer directly)\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Default Title","offer_id":45006545813677,"sku":null,"price":213.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/mfm_emu.jpg?v=1759862404"},{"product_id":"ps-2-keyboard-to-matrix-converter-for-the-aster-ct-80-computer","title":"PS\/2 keyboard to matrix converter for the Aster CT-80 computer","description":"\u003cp dir=\"auto\"\u003eFrom the original developer -\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eA recently aquired vintage computer came without the keyboard. As this is a simple 8x8 matrix, and the PS\/2 keyboard protocol is supported by the Arduino environment, is should be simple to fix. This solution uses a Arduino Nano to interpret the PS\/2 keyboard and convert it to an address for the MT8816 Analog Switch Array having a 16x8 matrix. The required matrix is only 8x8, so a smaller array might also work, but the MT8816 was easier to obtain.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe hardware side of the Aster keyboard is very similar to the Tandy Radio Shack models 3 and 4, so board and firmware could be used for these computers too, with minimal changes. More info on this after I tested this on my Model 4P.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e(This was reproduced from the authors Github and has no assigned license)\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Fully Assembled","offer_id":45006556364973,"sku":null,"price":99.99,"currency_code":"USD","in_stock":false},{"title":"Bare Board Only","offer_id":45006556397741,"sku":null,"price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/ps2-ct80-keyboardConverter1.1.jpg?v=1759863196"},{"product_id":"x-mem-80-model-iii","title":"X-MEM\/80 Model III","description":"\u003cp dir=\"auto\"\u003eX-MEM\/80 is a 512 KB paged memory expansion for the TRS-80 Model 1 and Model III. No permanent modifications are required for installation. The Model 1 version is entirely external (via expansion port edge connector), and the Model III version simply plugs into the existing Z80 socket on the Model III motherboard - the CPU needs to be relocated from the Model III motherboard onto the X-MEM\/80 board, but it is already socketed. No motherboard modifications are required, but the RF shielding in the Model III needs to be removed.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eUnlike previous memory expansions for the Model I (i.e., SuperMem), this is a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eminimally invasive memory expansion that does not require any soldering for installlation.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eX-MEM\/80 is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003epartially\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSuperMem compatible, as it allows to \"bank\" the upper 32 KBs (address range from\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0x8000\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eto\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0xFFFF\u003c\/code\u003e) with the memory on the card.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eA jumper allows configuration in two different modes -\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSuperMem\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX-MEM\/80\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodes:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003ein\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSuperMem mode\u003c\/strong\u003e, it offers\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e16 pages of 32 KBs\u003c\/strong\u003e, which are\u003c\/li\u003e\n\u003cli\u003emapped into the\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0x8000\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eto\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0xFFFF\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003e(= upper 32 KB) range. To\u003c\/li\u003e\n\u003cli\u003eselect the page number,\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003eout 67,\u0026lt;page number\u0026gt;\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eis used. The page\u003c\/li\u003e\n\u003cli\u003enumber can also be read back via\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003einp 67\u003c\/code\u003e. *Unlike SuperMem,\u003c\/li\u003e\n\u003cli\u003eX-MEM\/80 does not allow to bank the lower 32 KBs of the Model 1\u003c\/li\u003e\n\u003cli\u003ememory.* However, the existing SuperMem software (see below) doesn't\u003c\/li\u003e\n\u003cli\u003eseem to use this mode anyway, and works fine with X-MEM\/80's\u003c\/li\u003e\n\u003cli\u003eSuperMem mode. in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX-MEM\/80 mode\u003c\/strong\u003e, it offers **32 pages of 16\u003c\/li\u003e\n\u003cli\u003eKBs**, which can be mapped to the lower and higher 16 KB page of the\u003c\/li\u003e\n\u003cli\u003eupper 32 KB range, i.e., the lower 16 KB page from\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0x8000\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eto\u003c\/li\u003e\n\u003cli\u003e\n\u003ccode\u003e0xBFFF\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eand the higher 16 KB page from\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0xC000\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eto\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003e0xFFFF\u003c\/code\u003e. To\u003c\/li\u003e\n\u003cli\u003eselect the lower 16 KB page,\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003eout 65, \u0026lt;lower page number\u0026gt;\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003eis used,\u003c\/li\u003e\n\u003cli\u003eand\u003cspan\u003e \u003c\/span\u003e\u003ccode\u003eout 66, \u0026lt;higher page number\u0026gt;\u003c\/code\u003e\u003cspan\u003e \u003c\/span\u003efor the higher 16 KB page. Note\u003c\/li\u003e\n\u003cli\u003ethat it is possible to map the same pysical 16 KB page into both the\u003c\/li\u003e\n\u003cli\u003elower and higher address range (but this is usually not desirable).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe Model III version plugs into the CPU socket on the motherboard and works with any Model III regardless of internal memory configuration (no matter whether it has 16, 32, or 48 KBs installed), \u003cmeta charset=\"utf-8\"\u003eThen, a cable with a 3-pin 2-position selector switch can be routed to the outside of the Model III case for mode selection:\u003cmeta charset=\"utf-8\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe internal RF shielding needs to be removed - this won't affect Model III operation. Otherwise, you won't be able to close the case again.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCareful with the monitor neck!! More than one person destroyed the CRT by breaking off the tube neck during re-assembly.\u003c\/strong\u003e\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eIn addition, an extra 40 pin DIP precision socket is required and simply plugged into the existing Model III CPU socket. This provides a more stable connection, and, more importantly, adds some extra spacing between X-MEM\/80 and the Model III motherboard. Note that there are\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eelectrolytic capacitors C217, C129, and C211\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eon the Model III motherboard which will prevent X-MEM\/80 installation without the extra spacing created by the precision socket otherwise.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e(This was developed by Github user lambdamikel and used with permission. Boards (Bare and assembled) are produced in a 3rd party PCB facility)\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Bare Board","offer_id":45027973824685,"sku":null,"price":8.37,"currency_code":"USD","in_stock":true},{"title":"Fully Populated Board","offer_id":45186108620973,"sku":null,"price":49.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/16c7aa91-d8aa-48ec-9359-63066d19e36e.jpg?v=1760401323"},{"product_id":"trs-io","title":"TRS-IO++","description":"\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eOverview\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eTRS-IO++ is an all-in-one card featuring a 40- as well as a 50-pin edge connector. It combines the original TRS-IO functionality where it can be connected to a Model I\/III\/4\/4P as well as PocketTRS mode where it emulates a Model I\/III\/4\/4P. Depending on how it is configured, TRS-IO++ can operate in two different modes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eTRS-IO mode: TRS-IO++ acts as a TRS-IO card that can be connected to a Model I\/III\/4\/4P via its 40- or 50-pin edge connector respectively. In this mode it offers TRS-FS, TRS-NIC, FreHD as well as the RetroStore.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003ePocketTRS mode: TRS-IO++ acts as a Model 1\/III\/4\/4P. In this mode, external peripherals such as vintage harddisks can be connected to TRS-IO++'s 40- or 50-pin edge connector.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eTwo options :\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBare board - Just the board and the pointers to the BOM and instructions\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFully Populated Board - Everything is ready to go, completely pre-programmed, and includes -\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBoard\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSD card with variousFreHD images\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eCase and Fully Populated Board - Includes Case\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCase Only - Only the 2 part case\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e(This was developed by a team of people, using the Github of apuder. It is produced with permission. Boards (Bare and Assembled) are done by a 3rd party PCB facility.\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Fully Populated board","offer_id":45703892992173,"sku":null,"price":200.0,"currency_code":"USD","in_stock":true},{"title":"Bare Board","offer_id":45027978641581,"sku":null,"price":17.03,"currency_code":"USD","in_stock":true},{"title":"Case Only","offer_id":46410345447597,"sku":null,"price":35.0,"currency_code":"USD","in_stock":true},{"title":"Fully Populated board and Case","offer_id":46410345480365,"sku":null,"price":225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/a37461b7-6cc3-4356-a129-c4e52b0b2b14_36c1dd9b-ccda-4410-a590-9c58476ff044.jpg?v=1769985321"},{"product_id":"replacement-power-supply-for-model-4-4d-4p","title":"Replacement Power Supply for Model 4\/4D\/4P","description":"\u003cp\u003eLooking to freshen up your TRS-80 Model 4 \/ 4D \/ 4P Power supply a bit more than just replacing the capacitors? Well, this is it. BRAND NEW equipment. Upgrade your machine today!\u003c\/p\u003e","brand":"NewSOFT","offers":[{"title":"Default Title","offer_id":45029722456237,"sku":null,"price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/big_m4ps_a628cb7b-3c7b-4838-9cb7-84c766106617.avif?v=1760469555"},{"product_id":"replacement-power-supply-for-model-iii","title":"Replacement Power Supply for Model III","description":"\u003cp\u003eLooking to freshen up your TRS-80 Model III Power supply a bit more than just replacing the capacitors? Well, this is it. BRAND NEW equipment. Upgrade your machine today!\u003c\/p\u003e","brand":"NewSOFT","offers":[{"title":"Default Title","offer_id":45029722554541,"sku":null,"price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/big_m4ps_1.avif?v=1760469702"},{"product_id":"rgbtohdmi","title":"RGBTOHDMI","description":"\u003cp\u003eThe RGBtoHDMI interface converts the \"digital\" RGB video signal from vintage computers like the BBC Micro or PC MDA\/CGA\/EGA to HDMI or DVI compatible with most modern TVs\/Monitors. The interface comprises a Raspberry Pi Zero and a specially designed Hat containing a small CPLD. Custom firmware on the Raspberry Pi, in conjunction with the CPLD, is able to correctly sample each of the supported video modes to give a pixel-perfect rendition. The HDMI output is locked to the input so there are no frame drops, repeats or tears and it also has low lag of around 4 milliseconds (less than a quarter of a frame )\u003c\/p\u003e\n\u003cp\u003eAn addon analog interface is available for the 6-12 bit versions of the converter to support a limited number of computers with a few levels of analog RGB \/ YUV output such as Amstrad CPC, Spectrum, Atom, Dragon or Tandy Color Computer, or monochrome composite output such as Apple II \/IIe\/IIc, UK101, Superboard II, ZX80 and ZX81. Note this interface can only distinguish a few analog levels and is not suitable for systems with many levels of RGB or YUV.\u003c\/p\u003e\n\u003cp\u003eOne unusual feature of the converter is optional integer scaling where one original pixel on the computer is scaled to an exact number of lcd pixels without using any interpolation filtering. This results in the low resolution output from real hardware looking as clean and sharp as sources output at the native resolution of the lcd (see the\u003cspan\u003e \u003c\/span\u003eGallery of Screencaps\u003cspan\u003e \u003c\/span\u003efor examples) although you can use filtering if you prefer.\u003c\/p\u003e\n\u003cp\u003eDue to the way the video is sampled and re-quantised, when everything is setup correctly the output is totally noise free even when passing through an analog stage and it effectively makes the output of real hardware look like it is coming from an emulator.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWe are currently selling the following versions -\u003c\/p\u003e\n\u003cp\u003e1) Fully Populated Board - Just plug into a Raspberry Pi 2 WH, add an SD card, attach cables and start running!\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e2) Fully Populated Board and Analog Board- Just plug Analog into the base board, and that onto a Raspberry Pi 2 WH, add an SD card, attach the proper cable cables and start running!\u003c\/p\u003e\n\u003cp\u003e3) Full Board + Raspberry Pi Zero 2WH - Insert an SD card, attach all cables and start running!\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e4) Full Board + Analog Board + Raspberry Pi Zero 2WH - Insert an SD card, attach all cables and start running!\u003c\/p\u003e\n\u003cp\u003e5) Board + Pi + Case - Same as #3 but includes white resin printed case.\u003c\/p\u003e\n\u003cp\u003e6) Board + Analog + Pi + Case - Same as #4 but includes a white resin printed case.\u003c\/p\u003e\n\u003cp\u003e(PCB and 3D parts made and PCB populated in 3rd party 3D+PCBA facility overseas,  Raspberry Pi sourced nationally. This is a hoglet67 from Github project, our use is from their \u003cmeta charset=\"utf-8\"\u003eGNU General Public License v3.0 available online.\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Fully Populated Board","offer_id":45378637201581,"sku":null,"price":55.0,"currency_code":"USD","in_stock":true},{"title":"Fully Populated Board and Analog Board","offer_id":45616262971565,"sku":null,"price":90.0,"currency_code":"USD","in_stock":true},{"title":"Full Board and RPi Zero 2WH","offer_id":45378637234349,"sku":null,"price":85.14,"currency_code":"USD","in_stock":true},{"title":"Full Board\/Analog\/RPi Zero 2WH","offer_id":45616263004333,"sku":null,"price":120.14,"currency_code":"USD","in_stock":false},{"title":"Board - Pi - Case","offer_id":45378637267117,"sku":null,"price":89.26,"currency_code":"USD","in_stock":true},{"title":"Board - Analog - Pi - Memory - Case","offer_id":45616263037101,"sku":null,"price":124.26,"currency_code":"USD","in_stock":false},{"title":"Board - Bare","offer_id":46077211738285,"sku":null,"price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/500f4042-261a-4b6e-a9bf-7f256f6cde05.jpg?v=1764256951"},{"product_id":"rgbtohdmi-analog-board","title":"RGBTOHDMI Analog Board","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThis is the analog add-on board for the RGBtoHDMI adaptor. It will accept analog RGB and YUV signals from many computers, can also be used with C0pperdragon’s “Dizer” lumacode boards. Requires a RGBtoHDMI adaptor and a Raspberry Pi Zero (Available as a package)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis does \u003cem\u003eNOT\u003c\/em\u003e work with \u003cmeta charset=\"utf-8\"\u003e TexElect 6bit TTL RBG2HDMI\u003c\/span\u003e\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Default Title","offer_id":45616219390125,"sku":null,"price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/cbe6d95e-8c03-496b-8eb9-e175b2bd573b.jpg?v=1768579453"},{"product_id":"rs232c-serial-board-kit-for-the-tandy-radio-shack-trs-80-model-i","title":"RS232C Serial board kit for the Tandy Radio Shack TRS-80 Model I","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"font-size: large;\"\u003eThis is a \"The Right Stuff\" RS232C Serial kit for the TRS-80 Model I \u003c\/span\u003e\u003cspan style=\"font-size: large;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: large;\"\u003eInstalls inside the Expansion Interface and allows connection to serial devices like modems, serial printers, and other PCs via null modem adaptor (null modem adaptor not included).\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: large;\"\u003eThis is an improved version of the Radio Shack RS232 board which has not been available since 1984.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: large;\"\u003eImprovements:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eDIP Switch block and COM\/TRM switch removed (they were seldom used)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eUART, BRG, and line drivers are all socketed\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eModern Traco power 5-\u0026gt;12V converter uses much less power than the old Astec\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: large;\"\u003eGold-plated connectors for reliability - one less connector to worry about on your Model I \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cspan style=\"font-size: large;\"\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003cdiv\u003eComes with RS232 serial cable and floppy disk with MAL\/CMD and MODEM80\/CMD comms programs  and information CD.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"The Right Stuff","offers":[{"title":"Default Title","offer_id":45680165159085,"sku":null,"price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/rs232.webp?v=1769197549"},{"product_id":"one-rom-one-rom-to-rule-them-all","title":"One Rom - One ROM To Rule Them All","description":"\u003cp dir=\"auto\"\u003eThe most flexible ROM replacement for your retro computer. It is highly configurable and low-cost. Get them fabbed at JLC for under $5 each in a quantity of 10 or more.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eBased on a Raspberry Pi RP2350 (One ROM Fire 🔥) or STM32F4 (One ROM Ice ❄️).\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eOne ROM is available as 24 pin and 28 pin versions, emulating nearly all systems' 24 and 28 pin ROMs, including any possible chip select configurations, and can serve different images to multiple ROM sockets simultaneously.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eReplaces failed ROMs in Tandy, Commodore 64s, VIC-20s, PETs, Ataris, BBC, TIs, disk drives and many other types of systems.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eROM types replaced:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e24 pin: 2704, 2708, 2716, 2732, 2316, 2332, 2364\u003c\/li\u003e\n\u003cli\u003e28 pin: 2764, 27128, 27256, 27512, 23128, 23256, 23512\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eOne ROM was formerly known as Software Defined Retro ROM (SDRR).\u003c\/p\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"markdown-heading\" dir=\"auto\"\u003e\n\u003ch2 class=\"heading-element\" dir=\"auto\" tabindex=\"-1\"\u003eKey Features\u003c\/h2\u003e\n\u003ca id=\"user-content-key-features\" class=\"anchor\" aria-label=\"Permalink: Key Features\" href=\"https:\/\/github.com\/piersfinlayson\/one-rom\/tree\/main?tab=readme-ov-file#key-features\"\u003e\u003csvg class=\"octicon octicon-link\" viewbox=\"0 0 16 16\" version=\"1.1\" width=\"16\" height=\"16\" aria-hidden=\"true\"\u003e\u003cpath d=\"m7.775 3.275 1.25-1.25a3.5 3.5 0 1 1 4.95 4.95l-2.5 2.5a3.5 3.5 0 0 1-4.95 0 .751.751 0 0 1 .018-1.042.751.751 0 0 1 1.042-.018 1.998 1.998 0 0 0 2.83 0l2.5-2.5a2.002 2.002 0 0 0-2.83-2.83l-1.25 1.25a.751.751 0 0 1-1.042-.018.751.751 0 0 1-.018-1.042Zm-4.69 9.64a1.998 1.998 0 0 0 2.83 0l1.25-1.25a.751.751 0 0 1 1.042.018.751.751 0 0 1 .018 1.042l-1.25 1.25a3.5 3.5 0 1 1-4.95-4.95l2.5-2.5a3.5 3.5 0 0 1 4.95 0 .751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018 1.998 1.998 0 0 0-2.83 0l-2.5 2.5a1.998 1.998 0 0 0 0 2.83Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp dir=\"auto\"\u003e💰 Based on sub-$2 microcontrollers. Choose from Raspberry Pi (Fire) or STM (Ice)\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e⚡\u003cspan\u003e \u003cb\u003eFast \u003c\/b\u003e\u003c\/span\u003eenough for Tandy, PETs, VIC-20s, C64s, 1541s, IEEE drives, etc. Support faster systems with higher end microcontroller.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e📐\u003cspan\u003e Same footprint\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eas original ROMs - doesn't overhang the socket like other solutions.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e🔌\u003cspan\u003e USB version\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e- no programmer required, program from your browser.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e🚀\u003cspan\u003e \u003cb\u003eQuick Programming\u003c\/b\u003e\u003c\/span\u003e- build and flash in \u0026lt;10 seconds.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e🛠️\u003cspan\u003e \u003cb\u003eReflash in situ\u003c\/b\u003e\u003c\/span\u003e- no need to remove the ROM from the host when reprogramming.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e⚙️\u003cspan\u003e \u003cb\u003eSoftware configurable \u003c\/b\u003e\u003c\/span\u003echip select lines - no hardware jumpers required.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e💾 Stores up to\u003cspan\u003e \u003cb\u003e16 rom images \u003c\/b\u003e\u003c\/span\u003eof different sizes and chip select configurations. Image selectable via jumpers.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e📦\u003cspan\u003e \u003cb\u003eReplace multiple roms with one \u003c\/b\u003e\u003c\/span\u003ea single One ROM can replace up to 3 original ROMs e.g. all of C64 kernel, BASIC, character set.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e🔀\u003cspan\u003e Dynamic Bank Switching\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- switch between ROM images on the fly, e.g. different char ROMs.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e💻\u003cspan\u003e Hackable at runtime\u003c\/span\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/github.com\/piersfinlayson\/one-rom\/blob\/main\/docs\/RUNTIME-ACCESS.md\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- change the ROM images being served and access telemetry from the ROM at runtime using\u003cspan\u003e \u003cb\u003eAirFrog \u003c\/b\u003e\u003c\/span\u003eor other SWD probes.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e🧩\u003cspan\u003e Images combined automatically\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- no need to manually build up your own larger PROM image containing multiple retro ROMs.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e🏭\u003cspan\u003e Two layer PBC - \u003c\/span\u003e component on single-side, limited BOM for low manufacturing cost\/complexity\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e🔓\u003cspan\u003e Open Source \u003c\/span\u003esoftware and hardware.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e(These are sourced from our 3rd Party PCB supplier. The original project is available on GitHub with the user \u003cspan class=\"s1\"\u003epiersfinlayson and being produced under his LICENSE and permission)\u003c\/span\u003e\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Fire 24","offer_id":45680198484141,"sku":null,"price":21.36,"currency_code":"USD","in_stock":true},{"title":"Fire 24 with Pre-Soldered Pins","offer_id":45979952447661,"sku":null,"price":28.86,"currency_code":"USD","in_stock":true},{"title":"Fire 28","offer_id":45680198516909,"sku":null,"price":21.36,"currency_code":"USD","in_stock":true},{"title":"Fire 28 - Bare board","offer_id":45881378472109,"sku":null,"price":8.99,"currency_code":"USD","in_stock":true},{"title":"Fire 28 with Pre-Soldered Pins","offer_id":45979968569517,"sku":null,"price":28.86,"currency_code":"USD","in_stock":true},{"title":"Fire 28-B","offer_id":45881378734253,"sku":null,"price":21.36,"currency_code":"USD","in_stock":true},{"title":"Fire 28-B - Bare board","offer_id":46077224419501,"sku":null,"price":8.99,"currency_code":"USD","in_stock":true},{"title":"Fire 28-B with Pre-Soldered Pins","offer_id":45979952480429,"sku":null,"price":28.86,"currency_code":"USD","in_stock":true},{"title":"Fire 40","offer_id":45881379356845,"sku":null,"price":31.36,"currency_code":"USD","in_stock":true},{"title":"Fire 40 with Pre-Soldered Pins","offer_id":45979969355949,"sku":null,"price":38.86,"currency_code":"USD","in_stock":true},{"title":"Fire 40 - Bare board","offer_id":46094541357229,"sku":null,"price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/23808f6f-9739-45e7-926a-f7031572ce2f.jpg?v=1769201753"},{"product_id":"rgbtohdmi-analog-to-trs-80-model-i-video-genie","title":"RGBTOHDMI Analog to TRS-80 Model I \/ Video Genie","description":"\u003cp\u003eTired of makeshift cables to connect your RGBTOHDMI Analog board to your TRS-80 Model I or Video Genie? This plugs right into the analog board (Even clears cases) and goes to the 5Pin 180 degree video connector. This even has 2 more special items -\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e1) If using a TRS-80 Model I, with a jumper you can use the power in the TRS-80 Video Cable to power the Raspberry Pi.\u003c\/p\u003e\n\u003cp\u003e2) It already contains the \"hack\" to bring sync to pin 3. This will allow use of the \"TRS-80 Modified\" configuration.\u003c\/p\u003e\n\u003cp\u003eThis does \u003cem\u003eNOT\u003c\/em\u003e work with \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e TexElect 6bit TTL RBG2HDMI\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAvailable in 2 options -\u003c\/p\u003e\n\u003cp\u003e1) Bare Board - Must be populated yourself\u003c\/p\u003e\n\u003cp\u003e2) Fully Populated - Completely ready to go!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e(Designed at Tuc's Workbench, produced by a 3rd party PCB manufacturer)\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Bare Board","offer_id":45698030174381,"sku":null,"price":4.99,"currency_code":"USD","in_stock":true},{"title":"Fully Populated","offer_id":45698030207149,"sku":null,"price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/55398428-6084-412b-bbb2-a061bea396e2.jpg?v=1769734274"},{"product_id":"trs-80-model-i-mx-keyboard-all-new","title":"TRS-80 Model I MX Keyboard - ALL NEW","description":"\u003cp\u003eWe have a limited stock of this small batch production of reproduction TRS-80 Model I keyboard using ALL NEW PARTS! \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eRevive your retro computing experience with the \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eTRS 80 Model I MX Keyboard\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003cspan class=\"\"\u003e from RadioShack! Perfect for vintage tech enthusiasts and collectors, this authentic keyboard brings back the classic style and feel of the original TRS-80. Hand-built with precision and fully tested, it’s the ideal replacement for your aging or broken M1 keyboard. Add a touch of nostalgia to your setup and enjoy the genuine craftsmanship that defined early computing. Don’t miss your chance to own a piece of history—upgrade your collection with the TRS 80 Model I MX Keyboard today and celebrate the golden era of technology!\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eEach box contains :\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eFULLY ASSEMBLED Keyboard\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eVarious extra keycaps\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan class=\"\"\u003e20 pin connector and headers for attaching to TRS-80 Model I\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan class=\"\"\u003eInstructions\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"\"\u003e(Sourced from Dustys Vintage Workshop and sold with permission)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Dusty2050","offers":[{"title":"Default Title","offer_id":45741605617837,"sku":null,"price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/8be64fe3-e54c-4990-a8cb-297ad1fbac00.jpg?v=1771365630"},{"product_id":"rgbtohdmi-analog-to-rca-composite","title":"RGBTOHDMI Analog to RCA (Composite)","description":"\u003cp\u003eTired of makeshift cables to connect your RGBTOHDMI Analog board to your device running composite out? These could be things like a TRS-80 Color Computer, the output from BLUE-PRINT TRS-80 Composite Video Board or even non-computer items.  This plugs right into the analog board (Even clears cases) and outputs with a female RCA connector. \u003c\/p\u003e\n\u003cp\u003eThis does \u003cem\u003eNOT\u003c\/em\u003e work with \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e TexElect 6bit TTL RBG2HDMI\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e(Designed at Tuc's Workbench, produced by a 3rd party PCB manufacturer)\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Default Title","offer_id":45748322074797,"sku":null,"price":14.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/56059f13-2d5e-4e8b-ae2f-445998d078ae.jpg?v=1771448922"},{"product_id":"rgbtohdmi-analog-to-trs-80-color-computer-3-rgb","title":"RGBTOHDMI Analog to TRS-80 Color Computer 3 RGB","description":"\u003cp\u003eTired of makeshift cables to connect your RGBTOHDMI Analog board to your TRS-80 Color Computer 3 RGB port?  This plugs right into the analog board (Even clears cases) and outputs with a male 10 pin header. A 2ft cable is included (Not pictured)\u003c\/p\u003e\n\u003cp\u003eThis does *NOT* work with the \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e TexElect 6bit TTL RBG2HDMI\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e(Designed at Tuc's Workbench, produced by a 3rd party PCB manufacturer)\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Fully populated board","offer_id":46077239197869,"sku":null,"price":14.49,"currency_code":"USD","in_stock":true},{"title":"Bare Board","offer_id":46077239230637,"sku":null,"price":6.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/10878310-ca3c-4f8b-b609-742845e45ac6.jpg?v=1771449561"},{"product_id":"rocky-hill-daiquiri-tandy-color-computer-sc77526-replacement-dauquiri","title":"Rocky Hill Daiquiri Tandy Color Computer SC77526 replacement","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThis board replaces the functionality of the SC77526P DAC chip found in the Tandy CoCo's. The DAC chip is one of the custom linear integrated circuits used in the Color Computer 2 and 3. As its name implies, it contains a Digital to Analog Converter. This chip also contains a sound multiplexer and the circuitry necessary to interface the joystick controllers to the microprocessor.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStyles - \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBare Board - Just a board, BOM and instructions\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSMT Populated - Everything populated except the header pins (Supplied)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSMT Populated (Joystick Warning) - This is the first batch produced. They were verified with Rocky due to 2 chip replacements necessary and his comments were only - \u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e\"In the meantime you can sell this chip for those that really need a replacement for the DAQ with a disclaimer that it's mostly compatible with only minor differences in how the joystick is read.\"\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(Sourced from an international 3rd party PCB Assembly. Permission given by Github user qbancoffee \/ Rocky Hill to produce)\u003c\/span\u003e\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Bare Board","offer_id":45822273519789,"sku":null,"price":6.85,"currency_code":"USD","in_stock":true},{"title":"SMT populated","offer_id":45822273552557,"sku":null,"price":26.38,"currency_code":"USD","in_stock":false},{"title":"SMT populated - joystick warning","offer_id":45867548704941,"sku":null,"price":23.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/60a11f14-5cad-433c-8823-33a7e6605bd3.jpg?v=1773519330"},{"product_id":"rocky-hill-pepper-v2-tandy-color-computer-salt-replacement","title":"Rocky Hill Pepper V2 Tandy Color Computer SALT replacement","description":"\u003cp dir=\"auto\"\u003eThis board replaces the functionality of the SALT chip in the CoCo  The SALT chip (Supply and Level Translator) is responsible for supply regulation, RS-232 interface, level translation, cassette read operations, and driving the cassette relay.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStyles - \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBare Board - Just a board, BOM and instructions\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSMT Populated - Everything populated except the header pins (Supplied)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e(Sourced from an international 3rd party PCB Assembly. Permission given by Github user qbancoffee \/ Rocky Hill to produce)\u003c\/span\u003e\u003c\/p\u003e","brand":"Tuc's Workbench","offers":[{"title":"Bare Board","offer_id":45822275289261,"sku":null,"price":6.85,"currency_code":"USD","in_stock":true},{"title":"SMT populated","offer_id":45822275322029,"sku":null,"price":34.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/c43a0c63-8b93-4f8b-b91a-f7ed9e53f772.jpg?v=1773679089"},{"product_id":"panaflo-fbp-08b12l-fbp08b12l","title":"Panaflo FBP-08B12L \/ FBP08B12L","description":"\u003cp\u003eThese are NOS Panaflo \u003cmeta charset=\"utf-8\"\u003eFBP-08B12L \/ FBP08B12L fans. \u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cdiv data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-hveid=\"CAIIAAgACAgQAA\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003eThe FBP-08B12L\u003c!--TgQPHd||[]--\u003e is an \u003c!--qkimaf y97crf_s\/HugV6--\u003e\u003c!--cqw1tb y97crf_s\/HugV6--\u003e80mm DC brushless axial cooling fan\u003c!--TgQPHd||[]--\u003e manufactured by Matsushita\u003c!--TgQPHd||[]--\u003e (Panasonic\/Panaflo). It operates on 12V DC\u003c!--TgQPHd||[]--\u003e, draws 0.12A\u003c!--TgQPHd||[]--\u003e of current, and spins around 1350–2400 RPM to provide a quiet and reliable airflow for various electronic components and equipment. It is a direct 1:1 replacement to the Panaflo \u003cmeta charset=\"utf-8\"\u003eFBP-08B12L \/ FBP08B12L fan found in the TRS-80 Model 4P. \u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-hveid=\"CAIIAAgACAgQAA\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-sfc-inited=\"2\" data-complete=\"true\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/div\u003e\n\u003cdiv data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 20px; font-weight: 600; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(0, 29, 53);' data-complete=\"true\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\" data-animation-nesting=\"\" role=\"heading\" aria-level=\"3\"\u003eQuick Specifications\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-ved=\"2ahUKEwjWheGJm62VAxUHj4kEHTFSOL8Qi4wTegoIAggACAAICxAA\" data-bfc=\"\"\u003e\n\u003cul data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-sfc-cb=\"\" data-sfc-root=\"ep\"\u003e\n\u003cli data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-hveid=\"CAIIAAgACAsQAQ\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003e\n\u003cspan data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003eBrand:\u003c!--TgQPHd||[]--\u003e Matsushita \/ Panaflo\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-hveid=\"CAIIAAgACAsQAg\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003e\n\u003cspan data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003ePart Number:\u003c!--TgQPHd||[]--\u003e FBP-08B12L\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-hveid=\"CAIIAAgACAsQAw\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003e\n\u003cspan data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003eDimensions:\u003c!--TgQPHd||[]--\u003e 80 mm x 80 mm x 25–32 mm (depending on casing revision)\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-hveid=\"CAIIAAgACAsQBA\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003e\n\u003cspan data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003eVoltage:\u003c!--TgQPHd||[]--\u003e 12 VDC\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-hveid=\"CAIIAAgACAsQBQ\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003e\n\u003cspan data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003eCurrent:\u003c!--TgQPHd||[]--\u003e 0.12 A\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-hveid=\"CAIIAAgACAsQBg\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003e\n\u003cspan data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003eSpeed:\u003c!--TgQPHd||[]--\u003e 1350 to ~2400 RPM\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-hveid=\"CAIIAAgACAsQBw\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003e\n\u003cspan data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003eConnector\/Leads:\u003c!--TgQPHd||[]--\u003e 2-wire bare leads (red\/black)\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003c!--TgQPHd||[]--\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-ved=\"2ahUKEwjWheGJm62VAxUHj4kEHTFSOL8Qi4wTegoIAggACAAIDBAA\" data-bfc=\"\"\u003e\n\u003cdiv data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-hveid=\"CAIIAAgACAwQAQ\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003eThese are often used as replacement cooling fans in legacy electronics, arcade cabinets, power supplies, and vintage computer equipment. \u003c\/div\u003e\n\u003cdiv data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-hveid=\"CAIIAAgACAwQAQ\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv data-copy-service-computed-style='font-family: \"Google Sans\", Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);' data-complete=\"true\" data-hveid=\"CAIIAAgACAwQAQ\" data-sfc-cb=\"\" data-sfc-root=\"ep\" data-sfc-cp=\"\"\u003e(This was sourced nationally)\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Tuc's Workbench","offers":[{"title":"Default Title","offer_id":46459036631213,"sku":null,"price":9.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/files\/Screenshot2026-06-29at3.49.15PM.png?v=1782762572"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3623\/0317\/collections\/Electronics.jpg?v=1737143551","url":"https:\/\/shop.tucs-workbench.com\/collections\/electronics.oembed?page=2","provider":"Tuc's Workbench","version":"1.0","type":"link"}