[Amps] GU 74 operating parameters

Jim Tonne tonne at comcast.net
Wed Jan 6 11:09:47 PST 2010


Karl-Arne wrote in part:

> A PI-L network using a plate load impedance of  2800 ohms 
> and an
> intermediate impedance of 200 ohms would be a good 
> starting point.

Current in the PI and the L inductors will be
similar unless network Q is high.

Get PI-L designer here:
http://tonnesoftware.com/piel.html

Not only does design but also analysis including
both frequency-response plot (including return
loss) but also peak voltage across capacitors
and RMS current through inductors.

Its also on the ARRL HB CD if that is of interest.

- Jim W4ENE




More information about the Amps mailing list