Ram and Rom

Thanks for the memory.

There isn't really much that hasn't been discussed before when building the RAM and ROM boards, save maybe the jumpers on the ROM board which set which 8k bank of the EPROM is enabled. They consist of 3x 3 pin male DIL headers and need to be held in place with blu-tack or something similar whilst soldering them in place, it is best just to solder one pin of each header, then remove the blu-tack and check their alignment before soldering the rest of the pins.

It was also at this point I realised that I had made the mistake of soldering the header on the wrong side of the Z80 board, this won't affect it's function but will look odd next to the other boards that have their header soldered on the left hand side.

For once, all the diligent scavenging of screws, jumpers and oddments from old computers has paid off as I have plenty of plastic jumpers for the ROM selector in my spares box.