The original cases were vacuum formed. This is where a flat sheet of plastic is heated, then a vacuum pulls the plastic over a mould to form the shape. Any cut-outs that are required then need to be machined out. Injection moulded cases are described by Rick Dickinson in some detail on this page . B...

A member of the Sinclair ZX World forum is trying to get a run of brand new Sinclair ZX80 cases manufactured. He says this: I've been working hard recently in getting together different manufacturers in order to produce an EXACT copy of the Sinclair ZX80 case, either the original, or the later injec...

These keyboards may have some problems, but then, there are not many keyboards that are over 30 years old that don’t have at least some problems...

Mine (see here) still works okay. Although I don’t use this machine as my regular QL.

Mark

Some early AT keyboards had a switch to select XT mode. Of course that won’t help if all you have are PS/2 keyboards... If you search the ‘net you will find that there are three keyboard protocols for the five pin DIN system. It should also be possible to use a microcontroller to carry out a convers...

@vanpeebles » your not going to breakout of a very large box wrapped in Christmas paper again are you

Mark

Atari ST mice, Amiga mice, Acorn 8 bit and Archimedes mice are all ‘bus’ type. They of course all use different connectors or pin-outs. But if an adaptor cable is made, they will work with other bus type systems.

Mark

vanpeebles wrote:I can't help but think of a Two Ronnies, Newsdesk joke. And tonight we talk to a man from Bristol with a pair of QL's and another man from Queue-Ell with a pair of *pause* never you mind!

And it’s good night from him...

Mark

Hello and Welcome to the forum

Yes, lots of fun still to be had.

Mark

PS I have just arrived home after being in Bristol for most of the day...

Smells like a RAM fault to me. See this helpful web page and the online decoder/calculator is here . Could also be a dry solder joint, a poor connection (e.g. on an IC socket), or maybe a track that has a crack in the copper conductor. With all the disturbance, that may explain why it’s got worse an...

Chr$ wrote:I have enough trouble disassembling a cupboard.

Sledgehammers are good for that

Yes, sending a copy to a member who can preserve it and who can disassemble the code is a good idea.

Mark