Sinclair ZX80 / ZX81 / Z88 Forums

Hi wilco2009,

The SD81 Booster has arrived. It looks fantastic ! I'm eager to test it, probably this week end.
Thank you very much for this amazing piece of hardware.

Best regards,

Greetings from France, Back in the days, I typed this listing from Hebdogiciel into my beloved ZX81 :-) But bizarrely, you can't go down it. You can climb UP to that point, but you can't go back down from there. You can't go back down from the very top of ANY ladder. I can't work out whether that's ...

Hi wilco2009,

I’m very interested in your SD81 Booster + case.
I’m living in France.

Regards,

Here is my Sinclair 16 Ko RAM pack issue 3 with WRX Mod (and a lot of bodge wires on solder side ). It works great !

Fantastic work !
Count me in as well.

Hey,

What about a Moon Patrol style game ?
Or something like this helicopter game.

Greetings from France,

I'm also interested in the JOY81. I can solder so I only need a kit (board, components, connectors, ...).
Just let me know how much to ship to my country.

Keep up the good work !

BTW, I already bought many ICs from G&C Supermarket on eBay. Always a five star service.

Hi to all,

A very small update. All the connections are okay on my second Rampack.
I don't give up... desoldering time !

A small update.

SUCCESS !
After soldering back all the 4116 & LS157 chips and fixing the A6 line, one of my rampacks has come back to life.

I'm verifying all the connections of the second one before unsolder all the chips for testing purpose.

Thanks Mark, you beat me ! I had just finished the ULA pinout

The good news is I have found a bad connection on one of my RAM pack. It need a little soldering.
For the second, I have to use my scope.