ZX81 Composite Video, Memory Upgrade and Re Cap Part 2

Описание: ZX81 Composite Video Mod and 16k internal Ram Upgrade + Re-Cap (part 2)


This is a continuation from my previous ZX81 clip; in this video I will install the video mod PCB I populated previously as well as doing a 16k internal Ram memory upgrade and replacing the 40 year old electrolytic capacitors.

Part 2: Installation of the Video Mod Circuit and 16k Internal Ram (With a Re-Cap as an added bonus)

You will need the following components to do the memory and Re-Cap Mod
1 x TC55257BPL-10L Memory Chip (I think I paid under £3 for it)
(there are several other suitable alternative memory chips available)
1 X 22uF 16V (or greater) Radial Electrolytic Capacitor
1 X 1uF 16V (or greater) Radial Electrolytic Capacitor
Some thin equipment wire


More detailed information about this mod can be found in my blog


alleged-geek.blogspot.com


I hope you find this video interesting and helpful and sincerely hope that it may give ou the confidence to try it out for yourself.


If you have any questions or queries about the modificaions done in this clip, please feel free to message me here or by email


[email protected]


Many thanks for taking the time to watch this clip.


Any feedback good or bad is very much appreciated.



Thanks for watching