[Collins] 32S3 loading control

w9hak w9hak at insightbb.com
Wed Jul 23 18:14:01 EDT 2008


My 32S3 loading control capacitor is fully meshed when loaded up on 30 
meters. In looking at the schematic it seems that increasing the 
capacity of C-80, 100-500 pf, would help move the loading capacitor from 
the fully meshed position. I have been living with this issue for some 
time. I have to reduce the drive to maintain proper plate current.

C-80 isn't easy to reach and I suspect it was set at Collins during 
construction. Haven't found any information on setting up the loading 
assembly on this transmitter. Therefore I have been hesitant in tuning 
these capacitors. Any insight in the area would be greatly appreciated.

Smith Bradford
W9HAK





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