74HC273

CPU

GeraKuznetsov

9

FRONT PWB

Schematics of the PC-Engine CD-ROM2 - Includes comments about differences between CDR-30A and the older CDR-30

rgalland

7

1802 Mini SPI DMA

SPI Expansion Board for the 1802/Mini Computer

arhefner

2

6502fast3io

Fast PDIP-only 6502-based homebrew computer - code and hardware design sources

gfoot

2

p2000t ram expansion board 1056kb

RAM expansion board for the P2000T

ifilot

1

p2000t ram expansion board 2080kb

RAM expansion board for the P2000T

ifilot

1

pc 04 alu backplane

custom 8bit microprocessor project

ksmonkey123

1

K9HZ 100W 11band LPF Control

K0RGI

1

m8 2024 06 19 production

MC68HC11A1 MCU based SBC

KenWillmott

1

p2000t ram expansion board 128kb smd

RAM expansion board for the P2000T

ifilot

1

p2000t ram expansion board

RAM expansion board for the P2000T

ifilot

1

stplus

MC6809 Single Board Computer

KenWillmott

1

extrom

Dragon Pal with External Character Rom for Rev 3.1

jimbro1000

0

propeller vga board

Homebrew 6502-based computer

ifilot

0

expansion a

jensboe

0

senior design

HeavenPityD

0