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

[R.Measures]

On Dec 6, 2004, at 9:19 AM, Mike Clarson wrote:

> Don't know if the TL-922A has similar problems,

Yes

> 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! Hope I didn't lose a tube. Check the parasitic
> supressors for signs of overheating. --Mike, WV2ZOW

Good advice, and measure the resistance of the suppressor resistors to 
be certain.
>
> __

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