[TenTec] 422 Centurion blowing fuses...

[Bob McGraw - K4TAX]

Good point Jim.  I missed that.  In that case likely the fault would be the 
bias control on the Bias/QSK board.

Without doing a magnetization test, as the primaries will show a very low DC 
resistance, a primary short would be difficult to determine.  Of course if 
the primary is shorted to the frame, a DC measurement would show this.

Sounds like further and detail trouble shooting might be in order.


73
Bob, K4TAX


----- Original Message ----- 
From: "Jim Brown" <k9yc at audiosystemsgroup.com>
To: <tentec at contesting.com>
Sent: Sunday, February 02, 2014 12:44 PM
Subject: Re: [TenTec] 422 Centurion blowing fuses...


> On 2/2/2014 10:13 AM, Bob McGraw - K4TAX wrote:
>> He said one of the primary windings in shorted.
>
> Something about this does not compute. The original post said that he 
> didn't blow fuses until he went from standby to operate.  If the 
> transformer were shorted, I'd expect a fuse to blow with first power 
> applied to the transformer.
>
> 73, Jim K9YC
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