Sinclair ZX80 / ZX81 / Z88 Forums

I finally found my ZX81 in the basement. I didn't power it up for a day, to make it adjust for the temperature. When I powered it up, the great [K] apreared. After 5 minutes the [K] disapeared and the screen was white. Somehow my dear computer only worked for 5 minutes. :cry: I found a diagnostics p...

Now comes the soldering part.

/Martin

Thank you very much.

It was just What I needed.

/Martin

I've read Andre***'s ZX91, and he uses 'Word Sinc II (P. Hargrave Nanaim)'. Is this available anywhere? I think I have found Word Sinc II here: http://www.theoldcomputer.com/roms/getfile.php?file=Li9TaW5jbGFpci9aWDgxL1ZhcmlvdXMvV1NJSS4zJTIwJTI4MTk4MyUyOSUyOFAuJTIwSGFyZ3JhdmUlMjkuemlw However it pri...

Using a transistor or an analog switch, one key can "press" multiple ZX81 key at once. Here is an example I use to have "Backspace" (BS) and "/" on a single key: http://forum.tlienhard.com/phpBB3/viewtopic.php?f=2&t=915&hilit=tasten#p8838 I looked at the Maplin instruktions yesterday evening and fo...

1 2 3 4 5 6 7 8 9 0 <x SHIFT, 0 ed SHIFT, 1 > SHIFT 8 Q W E R T Y U I O P ^ SHIFT, 7 gr SHIFT, 9 A S D F G H J K L <x nl NEW LINE sp SPACE Z X C V B N M ^ . nl sh SHIFT < SHIFT, 5 sh fn ed gr sp sp < v > sh fn SHIFT, NEW LINE v SHIFT, 6 As pointed out to me earlier, the keys can't be used for multi...

Hi :) Now the keys from China has arrived. They've been place loosely on top of a pcb. The keys are small 1.2 x 1.2 cm, and the transparent plastic can be opened up, og a small piece of paper can be place under the transparent plastic. E. g. look at the key with Q. This will be a small keyboard with...

Hi :) I've downloaded 'Hi-Res Word Processor (1983) (Nissim Elmalehes) from this page: http://nitroroms.com/list/Sinclair%20ZX%20Spectrum/by-name/page-513 Does anyone have a manual for this? Another question: I've read Andre***'s ZX91, and he uses 'Word Sinc II (P. Hargrave Nanaim)'. Is this availab...

Look like you are trying to create the same as I am.

I will have it as an external keyboard via expansion board however.

I have similar keys.

http://sinclairzxworld.com/viewtopic.php?f=7&t=1793

1024MAK wrote: You are learning and making good progress

I've learned more a by a couple of days in the forum than the electronics for beginners books I've read.

/Martin