On Sunday, November 27, 2016 at 3:41:14 PM UTC-5, Michael J. Mahon wrote:
> D Finnigan <dog...@macgui.com> wrote:
> > In a tragic twist of irony, I powered on my Apple II Plus last evening after
> > a year in storage to test it. Didn't have it on much longer than 25 minutes
> > or so when I heard a sickening noise. A crinkling sound, then a column of
> > acrid smoke rose from the rear (switch end) of the power supply. Like a
> > flash I flipped off the switch and pulled the plug, but I fear the damage is
> > done.
> >
> > If you've read up to chapter 2 of The New Apple II User's Guide, or have
> > looked at the back cover of that book, then you have seen this Apple II
> > Plus, a fairly early model from spring 1979. And what I presume is its
> > original power supply is now up in smoke!
> >
> > Now I'm asking the Apple II community if someone can provide a replacement
> > supply, can fix this one, or can offer instructions for me to fix it.
> >
> > I'll be highly appreciative.
> Be of good cheer. ;-)
>
> The odds are excellent that the only failure is the mains filter capacitor,
> an "X1" type, that is easily replaced. (In fact, you can even run without
> it!)
>
> The downside, as you've observed, is the strong, disgusting odor, but that
> will slowly dissipate.
>
> You may also have blown the nearby fuse, also easily replaced.
>
> If the X1 capacitor (a box-like affair, about an inch square and 1/4"
> thick, mounted on its edge) isn't obviously blown, the problem may be
> elsewhere, but first, the most likely thing...
> --
> -michael - NadaNet 3.1 and AppleCrate II: http://michaeljmahon.com