Sinclair ZX81 Upgrades. Composite mod, 16K Internal RAM. Part 1
24:41
Sinclair ZX81 Upgrade. 16K Internal RAM install. Part 2
19:10
ZX81 still awesome after 40 years!
29:41
Dragon 32. Restoration, retrobrighting, recap and testing. Part 1
15:44
ZX81 Composite Video Mod - Fit and Test
32:13
Episode 27 - IBM PS/2 Model 30 286 Restoration - Part 6
28:26
Sinclair ZX Spectrum +3 and 3" Disk Drive Repair
32:20
ZX81 Part 2 – Upgrading the on board memory from 1K to 16K
30:25