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2025-04-14 18:05:16 UTC

DosFox on Nostr: Hurray! I repaired my Macintosh 128k! This one was suffering from vertical collapse - ...

Hurray! I repaired my Macintosh 128k!

This one was suffering from vertical collapse - basically just showing a single white line on the CRT.

After replacing a fair few components I finally found the culprit - the LM324N had died!

I'm not sure how a single output could fail (the LM324N is a quad op amp, and the other op amps seemed to be working fine!) bit regardless, I'm happy it's back in working order!