Software title | FTP path & filename |
Disciple circuit diagram | pics/circuit-diagrams/disciple.gif |
Kempston joystick interface circuit diagram | pics/circuit-diagrams/kempston.gif |
Plus D circuit diagram | pics/circuit-diagrams/plus_d.gif |
RGB interface circuit diagram | pics/circuit-diagrams/rgb.gif |
ZX81 64K upgrade circuit diagram | pics/circuit-diagrams/zx81-64k-upgrade.gif |
ZX81 circuit diagram. Part 1 | pics/circuit-diagrams/zx81-circuit1.gif |
ZX81 circuit diagram. Part 2 | pics/circuit-diagrams/zx81-circuit2.gif |
ZX81 clock doubler. Diagram & details | pics/circuit-diagrams/zx81_clock_doubler.zip |