-----Original Message-----
From: measures <2@vc.net>
To: amps <amps@contesting.com>
To: <amps@contesting.com>
Date: 08 September 2000 05:51
Subject: Re: [AMPS] Blown TL922A... What to do?
snip
>>Has anyone been able to measure the frequency of oscillation in, for
>>example, TL922?
>
>The only case I have knowledge of involved loosely coupling a spectrum
>analyzer to the anodes of a seemingly stable* SB-220. Whenever
>anode-current changed, damped wave ringing at c. 110MHz was observed.
>/*note: no bandswitch or Tune-C arcing took place during the test/
>
>>What dip frequencies are found with a GDO in a 922?
>
>Measuring at the dc blocking C, typically c. 120MHz. There is a slight
>variation depending on the setting of C-tune.
A few%, 10%, 25%?
Thanks,
Steve
--
FAQ on WWW: http://www.contesting.com/FAQ/amps
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
|