Yes, the magnetic field from the power supply will frequency modulate
the PTO coil, making received and transmitted signals sound bad. This
happened to me when I stacked the Corsair on top of the external VFO and
power supply. It looked nice but sounded bad.
73,
Bob WB2VUF
yash@aol.com wrote:
> Gary
> ?I found my corsair II to pick up a hum/buzz if the supply is close to the
> rig ,moved it 3 feet away and all seems ok now. That was a 961? tt supply.
> Maybe comming from a source in your house?
> good luck
> dale wt4t
>
>
>
>
>
>
>
> -----Original Message-----
> From: Gary Smith <Gary@doctorgary.net>
> To: tentec@contesting.com
> Sent: Thu, 2 Apr 2009 9:01 am
> Subject: [TenTec] Corsair II buzz
>
>
>
>
>
>
>
>
>
>
> I've got a Corsair II I'm planning on recapping with Ultra Low ESR
> electrolytics. There's a high pitched buzz I can hear which is
> distracting somewhat but is mostly absent when the narrow filters are
> engaged.
>
> It was there when I sent it to the factory for repair several years
> ago and they found no problems but I notice it and it was not there
> on my Omni and is not there on my other radio (not a Corsair).
>
> Any suggestions of which board I might start replacing the caps on to
> eliminate this noise?
>
> Thanks!
>
> Gary
> KA1J
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