>
>Hello all,
>
>I've been reading with considerable interest the results Frank, W3LPL and
>others in recent days, have had with setting up G-G tuned inputs in a
>passive manner.
>
>I am putting the final touches to a 10 meter G-G amp using a pair of
>4-400's. (I am only lacking putting the Millen HV connectors on Plexiglas
>pieces instead of the chassis, thanks to the reflector.) My tuned input is
>using a pi section with a torroid and two variable caps. It would make
>things a bunch easier if I could get the caps in the 'ballpark' BEFORE
>firing the amp up.
C1 should have 25 ohms of reactance for a Q of 2. Higher Q means less
bandwidth. Lower Q means possibly unacceptable min. swr. . L and C2
are adj. for min. swr with the cathodes driven with at least 50% of the
normal drive.
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
--
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
|