Hi,
a few days ago I posted a question regarding a KENWOOD TL922 amplifier
where tuning was very strange on most bands, more precise, the LOAD
control was most of the time on the fully left position (smallest C)(SWR
on the antennas was ok!).
I got four replies, Charley - W1TE was right: The problem was the small
choke in the grid circuit. This choke burned away, making one tube
intermittant before failure... This changed the input and output
impeadences and required retuning...
So have a look at this choke if you have a similar problem (soon?!).
Regards, Carsten - DL6LAU
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|