On Aug 25, 2006, at 9:30 AM, Scott Manthe wrote:
> This seems to be a very common occurrence in later Amperex tubes. The
> tube is at fault, not the amp
I do not agree, Scott. New Amperex tubes typically have a grid-
filament potential withstanding ability of > 8kV, and a short is not
going to occur unless some anomaly pushes the filament sideways,
causing it to touch the grid.
> - replace the tube and you'll likely get
> good service from the amp.
>
> 73,
> Scott, N9AA
>
> Mike Schlamp wrote:
>> HELP: Is my assumption too far fetched? If the tube is
>> shorted, what could have happened to cause this, considering the
>> tube is only 3yrs of age? My fear is if I just replace the tube,
>> I will end up back to square one over time. Is there any
>> trouble shooting guide regarding the Amp? I am looking for a
>> document or notes indicating voltages, along with tips of what to
>> look for.
>>
>> Thank you,
>>
>> Mike
>> W5CUL
>>
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R L MEASURES, AG6K. 805-386-3734
r@somis.org
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