ctrl-alt-rees | Acorn Archimedes A305 Restoration Update - Keyboard Rebuild, Monitor Fixes & Video & Audio Mods @ctrlaltrees | Uploaded August 2020 | Updated October 2024, 17 minutes ago.
The Acorn Archimedes A305 was the original and first ARM CPU powered computer. I'm doing some work on mine in preparation for a video on the history of the ARM architecture and the Archimedes in general, so join me for a progress update!

Covered in this video: Reversing the video mod I did a few years ago to restore sync-on-green, the Burr-Brown op amp audio upgrade, monitor power switch fix and keyboard rebuild.

Relevant links:
KeyTronic keyboard pads: texelec.com/product/foam-capacitive-pads-keytronic
Amiga keyboard springs: retrohax.net/shop/amiga/keyboard-springs-set-for-amiga
Archimedes mouse mat: rhayadercomputers.co.uk/Archimedes_mouse_mat/p4866955_19273809.aspx

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Chapters:
00:00 Intro / Quick Note On Studio Remodel
01:00 Keyboard Rebuild & Upgrade Attempt
03:29 AKF11 Monitor Refurb & Repairs
05:11 Reversing The VGA Video Modification
06:40 Burr-Brown Op Amp Audio Upgrade
07:44 Audio Comparison - Cannon Fodder
08:25 Conclusions & Outro

#acornarchimedes #restoration #vintagecomputing