C62 is a 150uf 35v with its negative foot on the -12v rails but it goes to... dunno

regulation feedback?

C63 is a 100uf 35v on the -12v rail

ax man had these Sprague 502D 150uf 35v caps with a date stamp of 1988 but searching for a data sheet brings up catalogs from the 70s on bitsavers

you know what they're probably fine

i expect to just run it on a bluescsi, unclear what the -+12v will even do on this machine

ethernet phy? serial? audio amp?

#retrocomputing #macintosh #marchintosh

@Seg Yes, definitely serial, probably audio, maybe Ethernet.