There is lots of good information on this site. Take a look.
http://www.somis.org/
73's
Todd
N4JRZ
--- On Thu, 8/5/10, Jim Thomson <jim.thom@telus.net> wrote:
From: Jim Thomson <jim.thom@telus.net>
Subject: [TowerTalk] TL-922 grid chokes
To: towertalk@contesting.com
Date: Thursday, August 5, 2010, 10:45 AM
Date: Wed, 4 Aug 2010 10:34:40 -0500
From: rcm@mail.icnet.net (Randall Mullinax)
Subject: [Amps] TL-922 grid chokes
The grid chokes in my TL-922 were replaced with 10 ohm resistors
by the previous owner. The amp works fine except on 10 M where the
resistors go up in smoke within a few seconds.
This bring up several questions.
1. Is the amplifier oscillating on 10 M?
2. Should I replace the resistors with the factory 470 uH chokes
or directly ground the grids?
3. Where can I get replacement grid chokes?
4. I?ve read about adding/increasing negative feedback. Does anyone
have suggestions?
Thanks for any and all comments.
Randy
AD5RM
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