12 Apr
2008
12 Apr
'08
1:47 p.m.
Tony Duell wrote:
That's what I was thinking of doing.
I was given a
Mac Plus a while back... and never tested it....
Decided to give it a quick test...
Other than needing a boot floppy which I'll have to dig up.... it powers
on, video
looks good, monitor is stable and all...
But there is a faint sound (think of it as a cross between crickets
chirping and clicks)
and after a while, it smells to me a bit like ozone at the top of the Mac.
I'm thinking maybe high voltage leakage ?
I'm thinking the same thing.
WHat _I_ would do is pull the case (we've had a discussion on opening
classic Macs recently) and the cardboard cover over the
vertically-mounted 'analogue board' (PSU and monitor circuits). Then
power the machine up -- touch _NOTHING_ inside -- and if possible darken
the room. Look for sparking, corona discharge, and the like.
It might be leackage from the flyback transformer, for
example.
If so... how much are flybacks for these ??? Where to get them ? I
like the
machine, but other than occasionally playing with it, I don't want to drop
$$$ into it (a few is OK... but I don't want to spend $50 on it for
instance).
-- Curt
-tony