[R-390] Z503, AGC amplifier anode coil

[Gord Hayward]

Good stuff Graham.  I rebuilt mine using a different coil that I had in 
my junk box.
I did have to change the capacitor to get it to resonate.  The coil 
should have lots
of inductance to get the Q up to give a good resonant plate impedance.  Your
experience with the glue was a lot better than mine.  I couldn't get the 
ferrite cups
off at all.

Cheers, Gord VE3EOS

-- 

Gordon L. Hayward, Ph.D., P.Eng.,
Associate Professor, Biological Engineering,
School of Engineering, University of Guelph,
Guelph, Ontaro, N1G 2W1.