ZX81 still awesome after 40 years!
In this video I install a composite video mod, then upgrade the internal RAM to 16K and show off some hi-res gaming awesomeness.
00:00 Introduction
01:42 eBay Auction Fail and EEVBlog link
02:05 Machine Internals
05:21 Composite Video Mod
07:53 16K Internal RAM upgrade
13:45 Quick Keyboard Fix
15:10 Testing RAM
15:44 Lo-Res Graphics
17:43 Hi-Res Graphics Invaders!
18:53 Outro
Useful Links
EEVBlog Mailbag #872.
• EEVblog #872 - Mailbag
Hi-Res Invaders and ZX81 Development
https://www.perfectlynormalsite.com/z...