Davide Bucci on Nostr: I found two problems in the Macintosh Plus analog board for the moment. A low-value ...

I found two problems in the Macintosh Plus analog board for the moment. A low-value resistor was open circuit and the fast SCR of the power converter oscillator is blown. I found a somewhat supposedly similar SCR on eBay as the original is unobtanium and I am waiting for it.