Vtr UDG card:
http://zx81.ordi5.free.fr/vtr/
Pictures, PCB, and wiring diagrams: http://zx81.ordi5.free.fr/vtr/download/ ... ECO%5D.pdf
dk'tronics 4K Graphics ROM
Re: dk'tronics 4K Graphics ROM
Xavier ...on the Facebook groupe : "Zx81 France"(fr)
- 1024MAK
- Posts: 5125
- Joined: Mon Sep 26, 2011 10:56 am
- Location: Looking forward to summer in Somerset, UK...
Re: dk'tronics 4K Graphics ROM
ZX81 Variations
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.
ZX81 Chip Pin-outs
ZX81 Video Transistor Buffer Amp
Standby alert
There are four lights!
Step up to red alert. Sir, are you absolutely sure? It does mean changing the bulb
Looking forward to summer later in the year.