[Heathkit] Heathkit Power Supply HWA 202-1 Problem

[Glen Zook]

Tighten all the machine screws and nuts in the unit. 
These come loose over the years and all of the grounds
in the unit are made through these.

Glen, K9STH


--- john lawson <jlcsfl2007 at yahoo.com> wrote:

> I have used this 13.8 volt 2 Amp power supply in the
> 80's and 90's with no problem. Recently it's been
> sitting on the shelf for the past 10 years or so. I
> got it out and hooked it up to 3 different
> receivers.
> In each case I could hear noise in the earphones
> that
> were not there before and it is NOT antenna noise
> that
> I am hearing. The best way I can describe it is its
> just noise that shouldn't be there. In addition,
> when I hook up a DIFFERENT power supply to each of
> these receivers all I hear is the antenna noise
> which
> is what it should be.
>    
> I have replaced all of the filter caps and the noise
> is still generated from the power supply.  Any
> suggestions as to what I can do next to locate and
> fix
> the problem is greatly appreciated. Thank You, John









Glen, K9STH

Website:  http://k9sth.com


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