Sinclair ZX80 / ZX81 / Z88 Forums

Sorry if its been mentioned but what about compatibility with a smaller board like a Wemos S2 Mini?

read this > https://blog.youmakerobots.com/7-essent ... av-player/

stuff to look out for when using those kind of devices/firmware.

I would still love to get my hands on a PCB

Nice mod to enable composite video on the zx81 Feed it the 5v line and the video line that normally go into the RF modulator and attach it to any earth. Inside the RF modulator detach the phono socket from the RF circuit. Then reroute the output from this mod to the phono socket. Only try to install...

Easy assemble 16K ram pack kit for a Sinclair ZX81. Solder the 3 components in the right place and you are good to go. The edge connector is on one side and Chips on the other side. The kit comes with PCB, 2 chips, 2 chip sockets, 1 edge connector and 1 spacer to put under the edge connector while y...

Child of Frankenstein is ZX81 16K Ram pack with an SD solution addon. It allows you to load games from SD on your ZX81 for up to 16K.. Wanna see it in action? Check out this independent review from Chris's Retro Corner: https://www.youtube.com/watch?v=isHVXoKy4tg Buy it from : https://www.youmakerob...

@Frank78 can I purchase one? if not is the PCB files available? I have enough parts to build a zx81