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Re: [TenTec] Corsair II buzz

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Corsair II buzz
From: Bwana Bob <wb2vuf@gti.net>
Reply-to: wb2vuf@arrl.net, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Thu, 02 Apr 2009 21:38:54 -0500
List-post: <mailto:tentec@contesting.com>
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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