ZX81-Related Links

Web sites

• Neil Streeter's ZX81 Index is a great ZX81/TS1000 site; I'm in the process of working out which .P files we share and which are unique.
• ZX-TEAM homepage has some useful information about ZX81 projects.
• Retro Computer Museum is a great source for all retro computers.

Forums

• Sinclair ZX80/ZX81 English forums. All you ever wanted to ask about the ZX81, ZX80, TS1000 and more.
• World of Spectrum Forums. There's some discussion of ZX81 stuff, along with a great deal of information around programming and Z80 machine code.

Modifications, Hardware Information, Projects

• Composite video modification for the ZX81 / TS1000. This gives a simple diagram that shows the circuit needed to modify a ZX81 or TS1000 to produce composite video output for a much better display.