
TRS-80-Model I G E1
RetroStack/TRS-80-Model-I-G-E1
Hardware Replica of the TRS-80 Model I Revision G
Boards in 27 GitHub repositories, designed in KiCad, that use the 74LS93SC by Texas Instruments (- Counters, Dividers). See how each wires it, with its parts, size, README and files; the 74LS93SC’s symbol, footprint and pinout are on its own page.

RetroStack/TRS-80-Model-I-G-E1
Hardware Replica of the TRS-80 Model I Revision G



RetroStack/Sorcerer_DreamDisk
Exidy Sorcerer/MicroBee DreamDisk Disk Controller


misterblack1/zenith_zt1
Information gathered on the Zenith ZT-1 / ZT-10 / ZT-11 and ZTX/ZT-x-A variants



cartheur/analogue-metal-circuits
A collection of circuits for a foray into the metal project.

ForgottenMachines/Entrex
The technologies documented here will include all like-kind systems manufactured by Nixdorf, Redifon, ROCC & Mera, all originally designed by Entrex Inc, Burlington, MA USA.

RetroStack/TRS-80-Model-I-Jap50-E1
Hardware Replica of the TRS-80 Model I Revision HE11E011550

Aniruddha-Deb/ElectronicClock
Clock based on CMOS 40xx and TTL 74xx logic IC's

ArqueologiaDigital/SintetizadorGuidoStolfi
Repositório contendo documentação técnica sobre o sintetisador musical criado na década de 70 na Escola Politécnica da USP pelo professor Guido Stolfi.

Bambelweeny57/OSI-600D-SuperBoard-II
KiCad 10 recreation of the Ohio Scientific Superboard II Model 600 rev D (1980) with Cherry MX keyswitches, 27C16/2816 ROMs, full schematic and assembly guide.



malmacleod/Super-80-PCB-V1
KiCad reproduction of Super 80 PCB (original version)


NeilsVintageComputers/1981_Aamber-Pegasus-2023-Revival
My first computer, this is a replica I produced from the original schematics using original old components.


rosco-m68k/rosco_m68k
Design, documentation and software for the Really Old School Computer (M68K)


