Sinclair ZX80 / ZX81 / Z88 Forums

The two diodes, D1 and D2 and the PCB "bar" track were apparently provided to connect to a shield to protect the circuitry on the board, or maybe to protect the user... There are/were a number of television video systems around the world, some use positive sync signals and some use negative sync si...

It does look good! Did you get the file from Shapeways? I looked there but didn't see a way to download it. :? Hi Mark, No, they were posted on the German forum. http://forum.tlienhard.com/phpBB3/viewtopic.php?f=2&t=672&start=100 Links are somewhere in the middle. Also for the ZX80 enclosure. But u...

Keep going... :D ;) Mark Haha... Trust me :D :D It is 6:35 in the morning here and still going! Nearly finished. Just a few more larger copper fills and I should be ready. And still not quite happy with the key pad footprint. Will redraw that too I think. Below some renderings of the top and the bo...

Tedious work, but getting there... Vectorised bitmaps of the original ZX80 PCB and used that as an overlay to verify my netlist. So far so good...

No worries guys. I'm the one that bought this item :-) It is currently in transit to the Netherlands. I have a bunch of ZX/QL machines here, but I never owned a ZX80 before. I will let you know what is in the package when it arrives. Watch this space... :-) *edit And according to the description it...

Speaking of cases, I managed to print the case for a 1-3K RAM PACK. I think the design was made by Markus Brenner. You can order the case via Shapeways. But I gave it a go on my FDM 3D printer and it came out reasonably. Needs a bit of sanding around the screw holes because of the support material t...

PokeMon wrote: ↑Sat May 13, 2017 5:44 pm

MaFli wrote: ↑Sat May 13, 2017 5:09 pm Thanks everyone. Good to see this forum is still alive

Not just alive, sometimes quite frequently used by its members.

LOL! I'll try to add my bit!

p.s. Thanks for sending the "bits and bobs" I ordered a few days ago...

Interesting... I have Flicked the Seller an email, to see if he can Contact the Buyer, and possibly grab a "Scanned Copy" for us and email it to me. Watch this space... No worries guys. I'm the one that bought this item :-) It is currently in transit to the Netherlands. I have a bunch of ZX/QL mach...

Thanks everyone. Good to see this forum is still alive :-) Welcome to the forums - it is always nice to introduce yourself but not obligatory :) You're welcome! I actually ordered a membrane from you last week. And some rivets. I'm in the proces of redrawing the ZX80 in my CAD program so I can creat...

Hi All! Just realised that this forum has been here quite a while. Sorry... I did post a few comments recently without letting you know who I am. For those interested, I am an electronic engineer. And quite a nerd (which is a good thing nowadays...). Anyway, I dug up my collection of ZX/QL machines ...