Uploaded November 2025 | Updated September 2026, 2 weeks ago
It's time to revisit the battery damaged Apple Lisa from a couple weeks ago. I had a chance to test a couple of my boards in a working Lisa so I could rule out potential issues with these two boards.
Apple Lisa Playlist: youtube.com/playlist?list=PL4tFqFVNf5LQ-OE8JGNMJQoVOmgkyTorC
Part 1: youtu.be/77El1RmSY0Q
Part 2: This part!
Part 3: youtu.be/I6Mp-OVm92U
Part 4: youtu.be/zSlv7GZdFUg
Part 5: youtu.be/ohLDLJR-4-o
Part 6: youtu.be/HMEDMvb4IjM
Part 7: youtu.be/Vwr8A6k9cNM
-- Links
Alex's Github with replacement Lisa PCBs:
github.com/alexthecat123/Lisa-PCBs
Adrian's Digital Basement ][ (Second Channel)
youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g
Support the channel on Patreon:
patreon.com/adriansdigitalbasement
My GitHub repository:
github.com/misterblack1?tab=repositories
--- Instructional videos
My video on chip removal without damage:
youtube.com/watch?v=XQVjwPsVFd8
--- Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino
It's time to revisit the battery damaged Apple Lisa from a couple weeks ago. I had a chance to test a couple of my boards in a working Lisa so I could rule out potential issues with these two boards.
Apple Lisa Playlist: youtube.com/playlist?list=PL4tFqFVNf5LQ-OE8JGNMJQoVOmgkyTorC
Part 1: youtu.be/77El1RmSY0Q
Part 2: This part!
Part 3: youtu.be/I6Mp-OVm92U
Part 4: youtu.be/zSlv7GZdFUg
Part 5: youtu.be/ohLDLJR-4-o
Part 6: youtu.be/HMEDMvb4IjM
Part 7: youtu.be/Vwr8A6k9cNM
-- Links
Alex's Github with replacement Lisa PCBs:
github.com/alexthecat123/Lisa-PCBs
Adrian's Digital Basement ][ (Second Channel)
youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g
Support the channel on Patreon:
patreon.com/adriansdigitalbasement
My GitHub repository:
github.com/misterblack1?tab=repositories
--- Instructional videos
My video on chip removal without damage:
youtube.com/watch?v=XQVjwPsVFd8
--- Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino
![A piece of computing history: The Acorn Archimedes A420/1
Today we are looking at one of the first commercial computers with an ARM processor: The Acorn Archimedes A420/1
Part 1: This part
Part 2: https://youtu.be/m5xuJwQhANQ
0:00 Intro
1:48 Unboxing
10:42 What was sent in
18:42 Taking a look inside
26:13 Acorn and the Archimedes
46:27 Hooking the Archimedes to a monitor
49:33 First power up
57:17 Exploring RiscOS for the first time
59:48 Outro
Links
RISCO OS for Raspberry Pi:
https://www.riscosopen.org/content/downloads/raspberry-pi
8-bit Retro Shop:
https://www.retro8bitshop.com/
Toksicy2k Ebay: (Monitor flap)
https://www.ebay.com/itm/136011053548
Acorn Archimedes A420/1:
https://chrisacorns.computinghistory.org.uk/Computers/A4001.html#A410/1
ARM3 upgrade:
https://chrisacorns.computinghistory.org.uk/32bit_UpgradesH2Z/WE_25MHZARM3.html
Econet Module:
https://chrisacorns.computinghistory.org.uk/Network/Pics/Acorn_ADF10_EconetModule.html
https://www.retroisle.com/general/acorn_econet.php
Wikipedia:
https://en.wikipedia.org/wiki/Acorn_Archimedes
https://en.wikipedia.org/wiki/Acorn_Computers
Adrians Digital Basement ][ (Second Channel)
https://www.youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g
Support the channel on Patreon:
https://www.patreon.com/adriansdigitalbasement
My GitHub repository:
https://github.com/misterblack1?tab=repositories
Instructional videos
My video on chip removal without damage:
https://www.youtube.com/watch?v=XQVjwPsVFd8
Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino A piece of computing history: The Acorn Archimedes A420/1](https://i.ytimg.com/vi/zvv06jKcMtE/mqdefault.jpg)