14 May
2007
14 May
'07
2:32 p.m.
I'm guessing that old (circa early-70s) electrolytics which have a green cap
at one end and a red cap at the other are polarised and that the green end is
-ve. Can anyone confirm to save me tracing out schematics?
They're in the power supply of an IME-86s calculator and are decidedly past
their best :-) (At least four of the ten in the PSU are showing signs of major
leakage)
The rest of the machine *looks* healthy enough; once I've replaced the
electrolytics is there any good reason not to slowly run the system up on a
variac (rather than giving it full AC from the start)?