FAST and SLOW modes on ZX80 with 8K ROM. PCB with complete instructions and parts list. PCB will work with new ROMs if installed properly.
Slow/Fast kit for ZX80 with 8K ROM
The Authoritative Website for Timex/Sinclair Computers
The Authoritative Website for Timex/Sinclair Computers
FAST and SLOW modes on ZX80 with 8K ROM. PCB with complete instructions and parts list. PCB will work with new ROMs if installed properly.