[Drake] TR7 Reforming Capacitors in PS7

[Tom Evans, AG9X]

Ray,

Despite regular use, the original caps in my two PS-7s developed a fishy,
vinegary odor when in use.  I replaced the caps.

The caps in your PS-7 are probably due for replacement too.

73,
Tom, AG9X



On Mon, Aug 22, 2011 at 2:13 AM, Ray Spreadbury <ray2.s at btinternet.com>wrote:

> Hi
>
> I need some advice.
>
>
> I bought a Drake TR7 in about 1980 with a lot of extras. Anyway I moved in
> 1985 & went QRT, the Drake line was packed away and unopened until a few
> months ago.
>
>
> I decided to become an active HAM again earlier this year with an Elecraft
> K2 but now would also like to try out the TR7 again.
>
> I know that electrolytic capacitors degrade without use and that brings me
> to the point of this email.
>
> Before applying any power to the PS7/TR7 should I replace the electrolytics
> in the power supply or is there an easy way of re-activating them without a
> variac?
>
> 73
>
> Ray, G3XLG
>
>
>
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