Sinclair ZX80 / ZX81 / Z88 Forums

Andy, thanks for this info. They are an interesting option, but pricey, very pricey, over $35 for set of 12 units with the delivery to the UK.

Come on, round pin header are perfectly fine with most of the IC sockets. http://p.globalsources.com/IMAGES/PDT/BIG/955/B1014762955.jpg I know that IC sockets that Sinclair used in 80-ties are cr... (not decent), but you can replace them very easy with a modern and good quality ones in less than 10 ...

BarryN wrote: ↑Fri Dec 22, 2017 2:24 am You could also try my other package, SZ81 for Mac: https://drive.google.com/open?id=0B8RnV ... zdWemtkRm8

Nice, it works well under OS X 10.11.6

moordean, good advise about soldering SMD components. PersonallyI found that soldering any 1206, 805 or even 603 packages is not difficult with a tip 0.8mm dia. At first I clean the PCB with IPA, then apply a bit of good quality flux on the pads and finally solder with a small portion of solder on t...

Very nice and useful adapter. It looks I'm late and no single board left One thing that I am not convinced with are surface mounted pin headers.

@Lardo Boffin: I did this at the time when I upgraded RAM to 16K. Anyway thanks for the advice.

Hi All, I bought ZX81 on auction a few weeks ago and it flashed back my first contact with this microcomputer when I was 6-7 years old. I bought it as faulty unit, but with few touches it showed the "K" cursor on the screen. I managed to upgrade the internal memory from 1KB to 16KB, played a few dem...