Re: [Amps] Henry 2KD-5 120 Hz Hum

[R L Measures <r@somis.org>]

On Aug 6, 2006, at 2:09 PM, Tom W8JI wrote:

>
>> 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.

Agreed.  The 2KD-5 has seriesed filaments.
>
> 73 Tom
>
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>

R L MEASURES, AG6K. 805-386-3734
r@somis.org



_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps