Amiga ks-rom (27c400 pin-out) adapter pcb with places for two plcc 29f040 byte flash

Up to 8 adapters for sale from batch of 10.
Price offerings in post 2.

Some description:
Round pin headers can be soldered on the underside and pin-through-hole (pth) PLCC sockets on top.
There is a jumper for rev 5 A500 main boards (address pin for a18 on "wrong" location) vs. standard rom pin location (rev6 mainboards.)
Other jumper selects A19 on AM29F040 flash chips. Pull-up resistor defaults it to '1' and jumper can ground it to '0'. Switch could be used too (maybe add capacitor to ground to filter coupled noise from wires to switch.).
It can emulate also 27c800 with one extra pin to dip-42 socket's pin 1 (a19, on Amiga 500+ and 600).
The flash chips are programmed before being placed to sockets and rom binary is to be splitted to two files for byte programming.

Some completed adapters + ship for 15 euros. adapter pin headers are low profile type. (white, bought at ebay)

It's been a while, but interested in either a complete adapter or a kit depending on what's available (if anything).
Sending PM.

I have all, none sold yet.


I'll upload schematic of the adapter.

Thanks, payment sent for one completed adapter.

Adapter received and feedback left.
Haven't tried it yet but looks great - why aren't more people using these?

Thanks