[TenTec] Troubleshooting Power amps in general

[Ron Castro]

That's probably right, but.....

My 425 blew fuses three times.  Once when the plate transformer shorted, 
which almost all of them eventually did.  Another when the bias board blew, 
probably from lightning damage.  The third...and this is the odd one...the 
disc ceramic capacitors on the high voltage meter voltage-divider board got 
too close to the cabinet at arced over.  I replaced the caps with better 
ones and made damn sure they were not touching the chassis.  No problems 
since!

            Ron N6IE
       www.N6IE.com

----- Original Message ----- 
From: "Jim Brown K9YC" <k9yc at audiosystemsgroup.com>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Monday, March 22, 2010 8:51 PM
Subject: Re: [TenTec] Troubleshooting Power amps in general


> On Mon, 22 Mar 2010 17:57:27 -0600, Dr. Gerald N. Johnson wrote:
>
>>There are several possible failures that will blow the fuses. Blowing
>>more fuses won't fix the failure and may damage more parts.
>
> Based on my experience with three Titan 425s over six years, I'd say you 
> are
> being FAR too alarmist. I would only open it and start troubleshooting if 
> a
> replacement pair of fuses blows more or less right away. It is NORMAL for
> these fuses to blow every six months or so, and at unpredictable times, 
> and
> for reasons unrelated to the power amp.
>
> 73,
>
> Jim K9YC
>
>
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