Sinclair ZX80 / ZX81 Forums

No the spand+ is slightly too large for the Memotech case so the ones sold on Sell My Retro would be the way to go. I would also advise that if enclosing the board then use a regulated power pack of about 1.5/2 amps set for 7.5 volts with the spand+ as the two small voltage regs on the back of the s...

The two inductors on the board would seem to confirm a US spec board as Mark says, even in the absence of the grounding strips common to this board.

Another alternative is to solder an edge connector onto the board. Also the link provided by Mark for the Maplin board is really important as this board doesn't use the standard allophone codes(0-63 decimal) for the SPO256 chip (a quick glance shows 192 decimal is added to a standard allophone code ...

Andy Rea wrote: ↑

Sun Apr 21, 2019 1:36 pm

Don't let Moggy know but try a heatsink on the ULA...

BTW which composite mod did you do?

Andy

We both know what to do so all is good.

Superb work, Martin. :ugeek: If you use the standard zeddy keyboard the shift/Z to tabulate might not seem important. But when you use an external keyboard the TAB function sometimes goes over to the right by one space too many and it is frustrating having to backspace all the time and start again, ...

If you read again my edited post, Martin you will see that I have come to the conclusion that all that is required is to not leave a space after the semi colon and all is ok.

Again this is excellent work.

I have edited my previous post many times for which I apologise as I tend to write/test as I go along hence the many edits.

I noticed that if a comment is added to the listing without space after the semi colon then the auto list works ok. But if a space is typed after the semi colon used for comments then this seems to stop the auto list but I shall experiment more before reaching a conclusion. EXAMPLE 1 ORG 16514 2 POS...

This is great work Martin.

This assembler has just become much better.

Many thanks for the time you have given to this, Martin I much appreciate it.