2 layers407 × 184 mm
TRS-80-Model I G E1
RetroStack/TRS-80-Model-I-G-E1
Hardware Replica of the TRS-80 Model I Revision G
230 parts57MIT
Boards using the 74LS156PC
9 boardsBoards in 8 GitHub repositories, designed in KiCad, that use the 74LS156PC by onsemi (-20℃~+75℃ 100uA 4.75V~5.25V 53ns@5V,50pF 6.1mA 74LS 8mA Decoder Reverse function Single Supply PDIP-16 Signal Switches, Multiplexers, Decoders ROHS). See how each wires it, with its parts, size, README and files; the 74LS156PC’s symbol, footprint and pinout are on its own page.
- 2 layers350 × 224.3 mm
- 4 layers244 × 244 mm
- 2 layers91.2 × 89 mm
RSYM-1 EXP MEMORY R3
dennisperry/RSYM-1_EXPANSION_MEMORY
This is a memory expansion board for the classic SYM-1 SBC. RAM is battery backed and the Flash ROM is held by a ZIF socket. ROM banks can be selected via switch settings.
48 partsMIT - 4 layers101.6 × 53.3 mm
RC201-68000 CPU 2
MarkD833/RCBUS-68xxx
My Motorola 68000 & 68302 processors (+ SIO, PIO & MFP boards) for the RCBus ecosystem.
38 parts8GPL-3.0 - 4 layers101.6 × 53.3 mm
RC205-68020 CPU 1
MarkD833/RCBUS-68xxx
My Motorola 68000 & 68302 processors (+ SIO, PIO & MFP boards) for the RCBus ecosystem.
45 parts8GPL-3.0 - 4 layers253.6 × 137.7 mm
S100 Thunder186-1.0-006
RichCini/LomasBoards
Small repository of files/data related to Lomas Data Products S-100 boards.
118 parts1 - 2 layers
VideoBoard
Cptscorcher/Excallibur-64
A reimagining of the seminal Excalibur 64 Computer
126 partsGPL-3.0 - 2 layers104 × 69 mm
RC2014-RAM ROM NoBanking
dennisperry/RC2014_PCBs
A group of RC2014 PCBs I've designed to expand my system
39 parts