[Amps] High C out

[Vic Rosenthal]

Dennis12Amplify at aol.com wrote:

>  I believe Chris is talking about converting from a PI network to  a Pi-L 
> network. The Pi-L having two levels of impedance matching, and a little  more 
> harmonic suppression, than the original Pi network.

Nope, he's talking about adding some inductance between the plate and the 
tune-C, making a kind of "L-Pi" (or L-Pi-L!) network.  The idea is that with 
very high plate load impedances it may be impossible to get a low-enough minimum 
capacity in the tune-C to permit a reasonably low Q.  Adding some inductance 
before the Pi network pre-transforms the load impedance to a lower value so a 
practical capacitor can be used.

-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco