Just as I'd finished getting the System 2 computer working up pop some replica System 1 boards on eBay courtesy of Trevor Hamblett (trev_ham on stardot) so I had to buy a couple of sets !
I've reserved one set as a replica System 1, the other set are to replace the wired boards in the System 2:
6502 CPU Board: Wired and Replica
Cassette Interface: Wired and Replica
(At some point I'll add some notes about modifications to the replica boards for fitting in the card frame system)
Trevor has produced other replica boards including the Teletext VDU, RAM/ROM Board, Backplane and a Keyboard.
Back to the System 3 Upgrade . . .