[Amps] TL-922A - Loud Pop, Blown Fuses

[R.Measures]

An arc in a vacuum does not make a loud pop like one in the atmosphere.

On Dec 6, 2004, at 12:06 PM, Vic Rosenthal wrote:

> Mike Clarson wrote:
>
>> Don't know if the TL-922A has similar problems, but my SB-220 has 
>> exhibited
>> evidence of parasitic oscillations, and, when that happens, one gets 
>> the
>> ".22 Caliber" pop. It is unpredictable, and, it can take out a tube. 
>> It
>> usually happens while tuning, but sometimes it will just happen at 
>> random. I
>> have sidelined the amp to fix it over the winter. The last time, it 
>> took out
>> the meter resistor!
>
> How can you tell that the pop was caused by a parasitic oscillation 
> and not from a gassy tube?
>
> -- 
> 73,
> Vic, K2VCO
> Fresno CA
> http://www.qsl.net/k2vco
>
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>

Richard L. Measures, AG6K, 805.386.3734.  www.somis.org