TU56/TC11 restoration - VARIAC question

[Scott Stevens]

On Thu, 17 Mar 2005 21:26:33 -0800
"vrs" <vrs at msn.com> wrote:

> > > I thought the basic structure of the AC electrolytics was that of
> > > two matched DC electrolytics wired in series.  If this is true,
> > > then I suppose a current limited AC supply might be able to reform
> > > them?
> > >
> > >     Vince
> >
> > I doubt if a motor capacitor is made up out of a back-to-back
> > electrolytic pair.  Usually, motor capacitors are some form of 'oil
> > filled' capacitor or modern variant, and are non-polarized.  Usually
> > not of a high enough value to need to be an electrolytic design.
> 
> These are 100uf 55VAC, IIRC, and definitely electrolytic.  I had one
> that squirted goo (which had gone all crusty).
> 
>     Vince
> 

The capacitors could be oil-filled, hence the 'goo' they'd squirt.  Said
oil might be nasty and carcinogenic, mind you. (PCBs)

But 100uF is rather high for it to be a non-electrolytic.