[Amps] Alpha 76A Filter Caps?

[Gerry Hull]

Thanks Bill.   I have a 120 variac, and also a 110-to-220 transformer.
I think I'll try the reform -- as you say, I may get lucky.

I'd still like to know a good source (2020) for caps that will work if I
need to replace them.

73, Gerry W1VE



On Fri, Nov 20, 2020 at 2:16 PM weaverwf at usermail.com <weaverwf at usermail.com>
wrote:

> I just went through this with an ‘86 that had been on the shelf for about
> 15 years. I checked the ESR on the caps and rewired the amp for 120 (I only
> had a 120V variac) and brought it up over a few days without problem. Back
> to operation at 240V with no problem. You could go this way (fuse the
> variac appropriately low) and find out whether you need new caps or not
> :-). You could get lucky.
>
> 73,
> Bill WE5P
>
> Comfortably Numb
>
> > On Nov 20, 2020, at 14:10, Gerry Hull <gerry at w1ve.com> wrote:
> >
> > Hey All,
> >
> > I've got an Alpha 76A which has not been powered up by me in two years,
> > and perhaps a few more by the previous owner.
> >
> > I was thinking of removing the tubes and bringing up the power slowly
> using
> > a variac to see if
> > I can reform the caps.
> >
> > Or is it better to simply replace them?
> >
> > I've been looking for Caps.  They are not easy to find.
> >
> > Would
> >
> https://harbachelectronics.com/shop/misc/cp-206-set-of-six-6-210-%ce%bcf-450vdc-filter-capacitors-with-sems-screws/
> > Might these fit in the amplifier?
> >
> > Thanks in advance.
> >
> > 73,
> >
> > Gerry W1VE
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>