For Sale

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:

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 (Atom version) Replica ASCII Keyboard Thumbnail  0 £25
ASCII Keyboard PCB (Electron version) Replica ASCII Keyboard Electron Version Thumbnail 2 £25
Backplanes (also see FileStore for smaller Backplanes)
Backplane 8-Slot Buffered PCB (with B-side tracked) Backplane 8-Slot Thumbnail 1 £12
Backplane 10-Slot Unbuffered PCB (with B-side tracked) Backplane 10-Slot Thumbnail 0 £12
Backplane 12-Slot Buffered PCB (with B-side tracked) Backplane 12-Slot Thumbnail 1 £20
Backplane Extender Board PCB Backplane Extender Board Thumbnail 0 £12
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 Thumbnail 3 £50
Memory Boards
Replica 8K RAM + 8K ROM Board PCB Replica 8K RAM + 8K ROM Board Thumbnail 3 £10
Replica 32K Dynamic RAM Board PCB Replica 32K Dynamic RAM Board Thumbnail 0 £10
Replica CUMEM Universal Memory Carrier Board PCB Replica CUMEM Universal Memory Carrier Board Thumbnail 5 £10
Dual Port RAM Board PCB Dual Port RAM Board Thumbnail 2 £5
2732-2532 EPROM Adapter PCB 2732-2532 EPROM Adapter Thumbnail 0 £3
VDUs
Replica 40x25 VDU (Teletext) Interface Board PCB Replica 40x25 VDU (Teletext) Interface Board Thumbnail 0 £10
Replica 80x25 VDU Interface Board PCB Replica 80x25 VDU Interface Board Thumbnail 4 £10
80x25 VDU Interface (Enhanced) Board PCB 80x25 VDU Interface (Enhanced) Board Thumbnail 1 £10
Processor & Interface Boards (also see Acorn System 1 below)
Replica 6502A CPU Board PCB Replica 6502A CPU Board Thumbnail 0 £10
Replica Versatile Interface Board (VIB) PCB Replica Versatile Interface Board (VIB) Thumbnail 4 £12
Storage      
Replica Floppy Disk Controller Board PCB
(this version incorporates my latest fix to ensure reliable 3.5" drive operation)
Replica Floppy Disk Controller (FDC) PCB Thumbnail  0 £10
FileStore E01E - a set of three Eurocards and Backplane PCBs to build my E01E version of the Acorn FileStore.  Note no SCSI interface yet that will follow. 1 £30
FileStore E01E - a complete set of four Eurocards and Backplane PCBs to build my E01E version of the Acorn FileStore. to follow not yet available  
FileStore E01E CPU Board PCB only FileStore E01E CPU Board Thumnail 1 £10
FileStore E01E Econet Board PCB only FileStore E01E Econet Board 1 £10
FileStore E01E FDC Board PCB only FileStore E01E FDC Board 0 £10
FileStore E01E - SCSI Interface Board PCB only to follow not yet available £10
FileStore E01E 4-Slot Backplane PCB only
(Can also be used with System Computers)
2 £5
FileStore E01E 5-Slot Backplane PCB only
(Can also be used with System Computers)
3 £6
       
BBC Master GOTEK Interface PCB BBC Master GOTEK Interface 3 £5
Floppy Drive Selector Board PCB Floppy Drive Selector Board Thumbnail 4 £7
Econet
Replica Econet Node Board PCB Replica Econet Node Board Thumbnail 4 £10
Econet Type 2 Clock/Terminator/Hub Board PCB Econet Type 2 Clock Terminator Hub Thumbnail 5 £10
Replica Econet Module ADF10 (26LS30) PCB
Also comes with the long pin headers and PCB stand-offs.
Replica Econet Module ADF10 (26LS30) Thumbnail 0 £8
Replica Econet Module ADF10 (75159) PCB
Also comes with the long pin headers and PCB stand-offs.
Replica Econet Module ADF10 (75159) Thumbnail 0 £8
Programmers
Replica PROM Programmer Board PCB Replica PROM Programmer Board Thumbnail 0 £12
PROM Programmer Power Supply PCB PROM Programmer Power Supply Thumbnail 0 £4
PROM Programmer Front Panel PCB PROM Programmer Front Panel PCB Thumbnail 3 £3
Tesla PROM Programmer PCB with optional use Front Panel PCB Tesla PROM Programmer Board Thumbnail 0 £13
Acorn System 1
Pair of Tesla MH74S571 PROMs programmed with Acorn System 1 Monitor.
Low nibble IC6 Yellow dot
High nibble IC5 Blue dot
Acorn System 1 Monitor (Tesla)  1 £20
System 1 Trainer PCB System 1 Trainer Thumbnail 2 £20
System 1 Trainer EPROM
New Mitsubishi M5L2732K programmed with the System 1 Monitor and Applications
System 1 Trainer EPROM Thumbnail 1 £10
System 1 Trainer Kit
Complete kit of board mounted components with PCB and programmed EPROM (power supply not included)
System 1 Trainer Kit Thumbnail 1 £140
Atom
Atom Riser Card PCB Atom Riser Card Thumbnail 6 £2
Atom Econet Node PCB Atom Econet Node Thumbnail 2 £15
Replica Atom Floppy Disk Controller Board PCB Atom Floppy Disk Board Thumbnail 5 £10
MK14
Replica MK14 PCB, black solder resist with gold flash Replica MK14 PCB Thumbnail  5 £25
Pair of Tesla MH74S571 PROMs programmed with SCIOS Version 1 (with 9th digit modification).
Low nibble IC2 White dot
1 £20
Pair of Tesla MH74S571 PROMs programmed with SCIOS Version 2 (i.e. with cassette routines).
Low nibble IC2 Green dot
High nibble IC3 Blue dot
SCIOS Version 2 PROMs (Tesla)  2 £20
This little PCB is a replacement for the NSA1198/9 display used on the MK14 and Acorn System 1 and accepts a pair of 4-digit 7-segement LED displays (courtesy of Trevor Hamblett). 5 £0
SOFTY 1
Replica SOFTY 1 Programmer PCB, black solder resist with gold flash Replica SOFTY 1 Programmer PCB Thumbnail 3 £25
2716 Adapter Replica SOFTY 1 2716 Adapter 1 £2
SOFTY 1 Power Supply PCB SOFTY Programmer Power Supply PCB Thumbnail 1 £4
National Semiconductor DM74S287 PROM programmed with SOFTY 1 Character Font
IC9 Purple dot
National Semiconductor DM74S287 PROM SOFTY 1 Character Font 0 £20
National Semiconductor DM74S571 PROM programmed with SOFTY 1 Character Font
IC9 Purple dot
National Semiconductor DM74S571 PROM SOFTY 1 Character Font 0 £15
New Intel 2708 EPROM programmed with SOFTY 1 Firmware (IC17)
Intel 2708 EPROM SOFTY 1 Firmware IC17 1 £20
New MM2102 Static RAM (IC4) MM2102 Static RAM for SOFTY 1 IC4 0 £5
Miscellaneous
New INS8154D National Semiconductor part in gold capped ceramic package INS8154D Thumbnail  2 £25
New NEC uPD446C-3 2K x 8-bit SRAM
These are equivalent to the HM6116 but I and others have found them to be more reliable when used in the 6502A CPU Board and System 1 Trainer used as a rack mounted Eurocard.
uPD446C-3 SRAM 5 £2
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 Fake HD64505SP-2 Thumbnail 3 £1
Used and programmed National Semiconductor 74S287 PROM, still useful for testing programmers   5 £1
Used and programmed National Semiconductor 74S571 PROM, still useful for testing programmers   5 £1

All PCBs are blank/unloaded boards unless otherwise stated !

UK postage will be £2 on any size order, please email for overseas postage (its not usually that outrageous as the boards are typically just a large letter size when packed).

I tend not to restock boards until there is demand so if you want an out of stock board please let me know and I'll reorder.

Please email me at acorn@oddys.plus.com) to confirm availability (as I also sell on eBay, where stock levels are more accurate) and I will send a PayPal invoice for payment.

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