Search found 3 matches

by jbuur
Sat Apr 27, 2019 11:01 pm
Forum: Hardware
Topic: ZX81 mods: USB power, CVideo, 32K, MP3
Replies: 7
Views: 8979

Re: ZX81 mods: USB power, CVideo, 32K, MP3

Apologies, messed up with the 32K RAM option there!

I did look at that particular PDF but in the end decided to follow these instructions (I didn't include the battery backup though):

http://www.zx81.de/english/32k-rame.htm

Cheers,

Jochen
by jbuur
Sat Apr 27, 2019 5:53 am
Forum: Hardware
Topic: ZX81 mods: USB power, CVideo, 32K, MP3
Replies: 7
Views: 8979

ZX81 mods: USB power, CVideo, 32K, MP3

Hi All, After 30 odd years since getting rid of my ZX81 with wobbly 16K RAM pack I recently bought another one back from Ebay; the photo's showed a bit of a sorry state but when on arrival it was actually in rather good condition. I thought I document some of the mods I did in case some of you are p...
by jbuur
Fri Apr 19, 2019 10:39 pm
Forum: Welcome Area
Topic: Hello all from Wellington, New Zealand
Replies: 3
Views: 2403

Hello all from Wellington, New Zealand

Great to be here, I have recently picked up a ZX81 after my previous one "got replaced" by a TI99/4a some 37 years ago. I forgot how clever the design was, both in- and external. Anyway, got it up- and running after a new membrane keyboard and some mods (see Hardware section).

Cheers!

Jochen