[Amps] 160 efficiency problem
Lynn
no9z at soltec.net
Mon May 19 10:26:35 EDT 2003
Hello,
I am almost finished with the new homebrew yc156 amp.
It works fine on 15 - 80 meters but I am having a problem with
160.
With 5000 watts in, I am getting about 1200 watts out.
I have added inductance to the plate and cathode chokes, changed
(padder caps for the load to 400 pf/ 7.5kv) , and setup the tank
several
times. The blocking cap is a 1900 pf .
THe other sympton is that grid current is much higher on 160 than
all the other bands.
what am I missing?
TIA for any assistance
Lynn NO9Z
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