Hi Tom:
It could also be the smaller cap that's in parrallel to the filter
choke in the power supply. Fern
----- Original Message -----
From: "Tom W8JI" <w8ji@w8ji.com>
To: "hamguy2" <hamguy2@fuse.net>; <amps@contesting.com>
Sent: Sunday, August 06, 2006 3:09 PM
Subject: Re: [Amps] Henry 2KD-5 120 Hz Hum
>
>> It could be 60 Hz. It sounds like 120 though. A local
>> ham with
>> band scope said 60 Hz and not a perfect sine wave. He
>> said it was
>> riding on the signal about 20 dB down. This is an amp I
>> acquired
>> recently and the hum problem has existed since I started
>> using it.
>
> Sounds like a filament balance problem to me.
>
> 73 Tom
>
>
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