HardLabs

Commodore-PET-Universal-Dynamic

MyRetroStore·Commodore-PET-Universal-Dynamic·Schematic/cpu_memory.kicad_sch

This repository ships a schematic but no board layout.
Simulate this board

About the Commodore-PET-Universal-Dynamic PCB

Commodore-PET-Universal-Dynamic is an open source PCB design by MyRetroStore, published on GitHub under the CC-BY-NC-4.0 license. It is a board, with 32 components from 19 distinct parts.

By type, the board carries 14 resistors, 3 capacitors, 2 connectors and 1 test point.

It belongs with the retro computing designs in this gallery.

From the project

This is a replica PCB of the universal dynamic motherboard for the Commodore PET

This is a replica PCB of the universal dynamic motherboard for the Commodore PET

The schematics were redone in KiCad and based off the original Commodore design. PCB is a near-exact replica (Or as close as I could reasonable make it) to the original Commodore PCB.

After purchasing what was advertised as an 8032 PET from eBay, I discovered that the motherboard was actually a 2001 board with random ROMs inserted. Considering the absurd prices for replacement PCBs I decided it would be a fun project to design and build a Universal dynamic PET board I could use with the CRT.

Commodore-PET-Universal-Dynamic bill of materials (BOM)

32 components, 19 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
Memory Expansion
J4, J9
1
TestPoint
TP7
4
74LS244
UB9, UB10, UD13, UD14
1
MOS6502
UB14
1
74LS17
UD15
1
LM555N
UD16
1
74LS00
UE11
1
74LS154
UE12
1
74LS10
UE13
1
74LS25
UE14
1
74LS04
UE15
1
100n
C50
1
1u
C51
1
10n
C52
7
1k
R1, R12, R15, R39, R42, R43, R45
3
470R
R13, R16, R17
1
3k3
R14
2
1M
R24, R25
1
68R
R46

Commodore-PET-Universal-Dynamic design files

The KiCad project lives in the MyRetroStore/Commodore-PET-Universal-Dynamic repository on GitHub; these links point at the commit this page was built from.

Commodore-PET-Universal-Dynamic: common questions

How many components are on the Commodore-PET-Universal-Dynamic?

32 components, from 19 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Commodore-PET-Universal-Dynamic design files?

From the MyRetroStore/Commodore-PET-Universal-Dynamic repository on GitHub, which has the schematic and the BOM; the links under Design files point to each one.

Can I use the Commodore-PET-Universal-Dynamic design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Similar boards