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

To: mclarson@rcc.com
Subject: Re: [Amps] TL-922A - Loud Pop, Blown Fuses
From: R.Measures <r@somis.org>
Date: Mon, 6 Dec 2004 09:39:13 -0800
List-post: <mailto:amps@contesting.com>

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


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