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.
https://youtu.be/UvJD8hbFbhU
Hi-Res Invaders and ZX81 Development
https://www.perfectlynormalsite.com/zx81dev..html
Видео ZX81 still awesome after 40 years! канала Robin Grosset
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.
https://youtu.be/UvJD8hbFbhU
Hi-Res Invaders and ZX81 Development
https://www.perfectlynormalsite.com/zx81dev..html
Видео ZX81 still awesome after 40 years! канала Robin Grosset
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