Acorn System Computers Shop

I have a number of spare PCB's left over from my replica projects which I offer here:

I regularly get asked 'what boards do I need to build a System x ?' so I have created a Build Guidance page to help.

Item Picture Available Price
Keyboards
Replica ASCII Keyboard PCB (Original Atom case version) ASCII Keyboard PCB 4 £24.20
ASCII Keyboard PCB (Alternative Electron case version) ASCII Keyboard (Electron) PCB 4 £19.50
Backplanes
Backplane 8-Slot Buffered PCB (with B-side tracked) Backplane 8-Slot PCB 5 £11.80
Backplane 10-Slot Unbuffered PCB (with B-side tracked) Backplane 10-Slot Unbuffered PCB 0 £11.40
Backplane 12-Slot Buffered PCB (with B-side tracked) Backplane 12-Slot PCB 0 £12.90
Backplane 14-Slot Unbuffered PCB (with B-side tracked) 14-slot Unbuffered Backplane PCB 0 £14.40
Backplane 14-Slot Unbuffered Wide PCB (with B-side tracked) Backplane 14-Slot Wide PCB 3 £19.60
Backplane Extender Board PCB Backplane Extender Board PCB 0 £11.90
Backplane Extender Board

Kit including the five 64-way connectors required some of which are hard to find, you just need to add a length of 64-way ribbon cable
Backplane Extender Board Kit 1 £40.00
There are also smaller backplanes avaliable that are part of the FileStore E10E and MK14E projects.
Memory Boards
Replica 8K RAM + 8K ROM Board PCB 8K RAM + 8K ROM Board PCB 3 £9.60
Replica 32K Dynamic RAM Board PCB 32K Dynamic RAM Board PCB 0 £9.60
Replica CUMEM Universal Memory Carrier Board PCB CUMEM Universal Memory Carrier Board PCB 1 £9.60
Dual Port RAM Board PCB Dual Port RAM Board PCB 1 £50
2732-2532 EPROM Adapter PCB 2732-2532 Adapter PCB 0 £3.00
Video Boards
Replica 40x25 VDU (Teletext) Interface Board PCB 40x25 VDU (Teletext) Interface Board PCB 3 £9.60
Replica 80x25 VDU Interface Board PCB 80x25 VDU Interface Board PCB 2 £9.60
80x25 VDU Interface (Enhanced) Board PCB 80x25 VDU Interface Board (Enhanced) PCB 5 £9.60
Processor & Interface Boards (also see Acorn System 1 below)
Replica 6502 CPU Board PCB Acorn 6502 CPU Board PCB 0 £9.60
Replica 6502A CPU Board PCB 6502A CPU Board PCB 0 £9.60
Replica Versatile Interface Board (VIB) PCB Versatile Interface Board + Adapter PCB 0 £11.5
Replica Floppy Disk Controller Board PCB

(this version incorporates my fix to ensure reliable 3.5" drive operation)
Floppy Disk Controller Board PCB 3 £9.60
Replica Econet Node Board PCB Econet Node Board PCB 0 £9.60
Programmers
Replica PROM Programmer Board PCB PROM Programmer Board PCB 0 £9.50
PROM Programmer Power Supply PCB PROM Programmer PSU PCB 4 £3.80
PROM Programmer Front Panel PCB PROM Programmer Front Panel PCB 1 £1.80
Tesla PROM Programmer PCB with optional Front Panel PCB Tesla PROM Programmer Board PCB 3 £14.70
Acorn System 1
System 1 Trainer PCB System 1 Trainer PCB 2 £13.50
System 1 Trainer EPROM

New Mitsubishi M5L2732K programmed with the System 1 Monitor and Applications
System 1 Trainer Monitor EPROM 1 £10.00
System 1 Trainer Kit

Complete kit of board mounted components with PCB and programmed EPROM (power supply not included)
System 1 Trainer Kit 2 £160.00
Pair of Tesla MH74S571 PROMs programmed with Acorn System 1 Monitor (for original System 1)

Low nibble IC6 Yellow dot
High nibble IC5 Blue dot
Acorn System 1 PROMs MH74S571 1 £15.00
Pair of National Semiconductor DM74S571J PROMs programmed with Acorn System 1 Monitor (for original System 1)

Low nibble IC6 Yellow dot
High nibble IC5 Blue dot
DM74S571J 1 £30.00

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