Buzzing PS?

From: Doug Spence <ds_spenc_at_alcor.concordia.ca>
Date: Fri May 30 07:41:27 1997

Hi,

The Apple /// I picked up last weekend has one annoying flaw, and that is
a *very* loud power supply, that seems to get louder the longer the
machine is powered up.

I think this thing becomes even louder than our 1950s-era Westinghouse
refrigerator. (OK, perhaps an exaggeration, but the sound seems to
carry farther.)

There is nothing obviously functionally wrong with the computer - it boots
up fine, there's no wavering or glitching in the display, nothing to say
that something might be wrong.

Except the buzzing.

It makes me nervous.

Is this noise normal, or is it a sign that something is about to go
kablooie? And if something's wrong, is there any way of knowing which
part is about to go?

It looks like the power supply should be easy to repair, but I don't know
what I'm doing with these things. I know it's been stated here that power
supplies should be checked before powering anything up, but I don't really
know how to do that, and sometimes I'm just too impatient to see my new
toys running.


Doug Spence
ds_spenc_at_alcor.concordia.ca
Received on Fri May 30 1997 - 07:41:27 BST