[TenTec] Corsair II buzz

[Bob McGraw - K4TAX]

That's one reason I've changed to switching power supplies for all of the 
needs of my stations.  No transformer hum, much higher efficiency.  And the 
ones I've chosen do not produce objectionable RF products.

73
Bob, K4TAX


----- Original Message ----- 
From: "Stan Barr" <g0clv at dsl.pipex.com>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Thursday, April 02, 2009 10:02 AM
Subject: Re: [TenTec] Corsair II buzz


> yash at 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 at doctorgary.net>
>> To: tentec at 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
>> _______________________________________________
>
> I had that problem when the psu was on the right of the rig.  Moving it
> to the left cured it.
>
> -- 
> Cheers and 73,
> Stan Barr  G0CLV  G-QRP 3369   g0clv at dsl.pipex.com
>
> "Never leave well enough alone." -  Raymond Loewy
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