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@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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