Sinclair ZX80 / ZX81 / Z88 Forums

That's better, the original power for the ZX81 was rated at 700 milliamp, the one you have pictured is the 1200 milliamp version required when using the Sinclair printer.

Your links for the two PSUs are bringing up a 403 forbidden error for me.

At 89 years old your father is probably the oldest Sinclair user yet!! Great to read that he still enjoys it.

That's a great story. Taking the bull by the horns and showing who's boss!

I would have thought it took a bit of power with those 4 power hungry beasts attached, did the standard power block manage it?

Have you cleaned your edge connectors of the zeddy? Can you please post a macro photo of your zxpand connector ? 20240430_221140.jpg20240430_221240.jpg Hello everybody. Maybe thickness of PCB also does matter. My Issue 1 ZX81 has a 1.6mm thick PCB. Not so much a board problem, more so that the conn...

That's good to know.

Donation sent using your new link.

Hi Paul. I don't have a PayPal account but my brother in law will send my donation with my forum name attached if that's ok? I for one appreciate all the hard work you and Mathias do, the forum and its members have been very good, very kind and patient ( cheers Lardo) with me over the years so long ...

Not set up for video but it seems to do on real kit what it does in an emulator Can't wait to see a practical use for this. :) Just a video with the phone is already enough That requires a smartphone which sadly I don't possess, just a text and calls one. I'm sure one of the gurus will oblige very ...

Not set up for video but it seems to do on real kit what it does in an emulator
Can't wait to see a practical use for this.

I don't have a US version but found these, click to enlarge.

Issue 1 and 3.

The issue one boards have had work done but should be ok for your needs, click pictures to enlarge.