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Low nibble IC2 White dot
Low nibble IC2 Green dot
High nibble IC3 Blue dot
IC9 Orange dot
Low nibble IC6 Yellow dot
High nibble IC5 Blue dot
I have a number of spare PCB's left over from my replica builds which I offer here together with a few other difficult to find parts:
| Item | Picture | Available | Price |
| Keyboards | |||
| Replica ASCII Keyboard PCB (Atom version) |
|
3 | £25 |
| ASCII Keyboard PCB (Electron version) |
|
3 | £25 |
| Backplanes | |||
| Backplane 8-Slot Buffered PCB (with B-side tracked) |
|
3 | £12 |
| Backplane 10-Slot Unbuffered PCB (with B-side tracked) |
|
3 | £12 |
| Backplane 12-Slot Buffered PCB (with B-side tracked) |
|
3 | £20 |
| Backplane Extender Board PCB |
|
0 | £15 |
| 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 |
|
3 | £40 |
| Memory Boards | |||
| Replica 8K RAM + 8K ROM Board PCB |
|
3 | £10 |
| Replica 32K Dynamic RAM Board PCB |
|
4 | £10 |
| Replica CUMEM Universal Memory Carrier Board PCB |
|
3 | £10 |
| Dual Port RAM Board PCB |
|
4 | £10 |
| 2732-2532 EPROM Adapter PCB |
|
4 | £2 |
| Video Boards | |||
| Replica 40x25 VDU (Teletext) Interface Board PCB |
|
2 | £10 |
| trev_ham Replica 40x25 (Teletext) Interface Board - loaded PCB (all turned pin sockets), no ICs fitted |
|
1 | £25 |
| Replica 80x25 VDU Interface Board PCB |
|
3 | £10 |
| Replica 80x25 VDU Interface Board - loaded PCB (all turned pin sockets), no ICs fitted |
|
1 | £25 |
| 80x25 VDU Interface (Enhanced) Board PCB |
|
3 | £10 |
| Processor & Interface Boards | |||
| Replica 6502A CPU Board PCB |
|
3 | £10 |
| Replica Versatile Interface Board (VIB) PCB |
|
1 | £12 |
| Replica Econet Node Board PCB |
|
not yet available | |
| Replica Floppy Disk Controller Board PCB |
|
3 | £10 |
| trev_ham Replica Floppy Disk Controller Board- loaded PCB (all turned pin sockets), no ICs fitted |
|
2 | £25 |
| Replica PROM Programmer Board PCB |
|
4 | £12 |
| PROM Programmer Power Supply PCB |
|
4 | £4 |
| PROM Programmer Front Panel PCB |
|
4 | £3 |
| Atom | |||
| Atom Riser Card PCB |
|
4 | £2 |
| Replica Atom Econet Node PCB | photo to follow | not yet available | |
| Mk14 | |||
| Replica Mk14 PCB, black solder resist with gold flash |
|
3 | £25 |
| Pair of National
Semiconductor DM74S571J PROMs
programmed with
SCIOS Version 1
(with 9th digit modification). Low nibble IC2 White dot |
|
2 | £15 |
| Pair of National
Semiconductor DM74S571J PROMs
programmed with
SCIOS Version 2 (i.e. with cassette routines). Low nibble IC2 Green dot High nibble IC3 Blue dot |
|
5 | £15 |
| SOFTY 1 | |||
| Replica SOFTY 1 Programmer PCB, black solder resist with gold flash | photo to follow | not yet available | |
| National
Semiconductor DM74S287 PROM
programmed with SOFTY Character Font. IC9 Orange dot |
photo to follow | not yet available | |
| Miscellaneous | |||
| INS8154D National Semiconductor part in gold capped ceramic package |
|
5 | £15 |
| INS8255J National Semiconductor part in ceramic package, branded RS |
|
3 | £8 |
| R6522-33 Rockwell part in plastic package |
|
5 | £8 |
| MC6845P Motorola part in plastic package |
|
5 | £5 |
| HD46505SP-2 Hitachi part, these were bought from China and are not HD46505SP-2 because some of the registers are missing !, they behave as a basic MC6845 |
|
5 | £2 |
| Pair of National
Semiconductor DM74S571J PROMs
programmed with
Acorn System 1 Monitor. Low nibble IC6 Yellow dot High nibble IC5 Blue dot |
|
5 | £15 |
All PCBs are blank/unloaded boards unless otherwise stated !
UK postage is £3 on any size order, please email for overseas postage.
I can order more boards if there is demand.
Please email me at acorn@oddys.plus.com) to confirm availability and I will send a PayPal invoice for payment.