Sinclair ZX80 / ZX81 / Z88 Forums

Hi all
I just ordered my zxblast and i can't wait......
No more tape deck flash drive makes an appearance......... Yeeeeppiiieee

Thanks Pokémon

Thank you very much
Kim

I want one NOW lol cannot contain myself
Kim

Hi all I have been reading up on this enhanced ula and it seems really impressive. You can use it out of the box or solder 5 little wires and hey presto enhanced mode. This discovery by Andy could mean lots more little zeddys being saved as the original ula are like rocking horse sh#t. So where coul...

Wow i love the debate and yes i agree to your first statement it is possible.
Kim

Hi and welcome
I am no expert in this field but if you have a series one motherboard the get on YouTube look for JOULESPERCOLUMB he has
A fantastic composite video cleansing schematic that cost me around £10 to make and fitting it is very easy....
Hope this helps
Regards
Kim

Hi has anyone got a working ula last three numbers on the ula are 184 for my issue one motherboard.
Many thanks
Kim
I live in hope to ressurect my zx81.......

Hi and thank you for responding to my post. Well i thought it had something to do with them diodes but i don't know the values to change them I also thought it could be the ula because the keyboard connects to pin 25 on the ula but other than that I'm starting loss. I have checked all traces with a ...

Hi can anyone help me with a problem zx81 issue one keyboard. I have replaced the keyboard with a new one from Rwap software. The problem is when you press print newline or V key it will crash. But not all the time. I am led to believe that this could be the ula playing up? So any suggestions to thi...

Zx81 issue one ula 184 needed to complete project