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)		0	£25
ASCII Keyboard PCB (Electron version)		2	£25
Backplanes (also see FileStore for smaller Backplanes)
Backplane 8-Slot Buffered PCB (with B-side tracked)		1	£12
Backplane 10-Slot Unbuffered PCB (with B-side tracked)		0	£12
Backplane 12-Slot Buffered PCB (with B-side tracked)		1	£20
Backplane Extender Board PCB		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		3	£50
Memory Boards
Replica 8K RAM + 8K ROM Board PCB		3	£10
Replica 32K Dynamic RAM Board PCB		0	£10
Replica CUMEM Universal Memory Carrier Board PCB		5	£10
Dual Port RAM Board PCB		2	£5
2732-2532 EPROM Adapter PCB		0	£3
VDUs
Replica 40x25 VDU (Teletext) Interface Board PCB		0	£10
Replica 80x25 VDU Interface Board PCB		4	£10
80x25 VDU Interface (Enhanced) Board PCB		1	£10
Processor & Interface Boards (also see Acorn System 1 below)
Replica 6502A CPU Board PCB		0	£10
Replica Versatile Interface Board (VIB) PCB		4	£12
Storage
Replica Floppy Disk Controller Board PCB (this version incorporates my latest fix to ensure reliable 3.5" drive operation)		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		1	£10
FileStore E01E Econet Board PCB only		1	£10
FileStore E01E FDC Board PCB only		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		3	£5
Floppy Drive Selector Board PCB		4	£7
Econet
Replica Econet Node Board PCB		4	£10
Econet Type 2 Clock/Terminator/Hub Board PCB		5	£10
Replica Econet Module ADF10 (26LS30) PCB Also comes with the long pin headers and PCB stand-offs.		0	£8
Replica Econet Module ADF10 (75159) PCB Also comes with the long pin headers and PCB stand-offs.		0	£8
Programmers
Replica PROM Programmer Board PCB		0	£12
PROM Programmer Power Supply PCB		0	£4
PROM Programmer Front Panel PCB		3	£3
Tesla PROM Programmer PCB with optional use Front Panel PCB		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		1	£20
System 1 Trainer PCB		2	£20
System 1 Trainer EPROM New Mitsubishi M5L2732K programmed with the System 1 Monitor and Applications		1	£10
System 1 Trainer Kit Complete kit of board mounted components with PCB and programmed EPROM (power supply not included)		1	£140
Atom
Atom Riser Card PCB		6	£2
Atom Econet Node PCB		2	£15
Replica Atom Floppy Disk Controller Board PCB		5	£10
MK14
Replica MK14 PCB, black solder resist with gold flash		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		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		3	£25
2716 Adapter		1	£2
SOFTY 1 Power Supply PCB		1	£4
National Semiconductor DM74S287 PROM programmed with SOFTY 1 Character Font IC9 Purple dot		0	£20
National Semiconductor DM74S571 PROM programmed with SOFTY 1 Character Font IC9 Purple dot		0	£15
New Intel 2708 EPROM programmed with SOFTY 1 Firmware (IC17)		1	£20
New MM2102 Static RAM (IC4)		0	£5
Miscellaneous
New INS8154D National Semiconductor part in gold capped ceramic package		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.		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		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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