[Amps] 3CX3000 tuned input calibration

[Tom W8JI]

would be necessary.  I merely hooked up the 50 resistor to 
the output of the
tuned circuit and fed power to the input and watched the SWR 
as I adjusted
the trimmers(one on each side of the toroid inductor).  Any 
thoughts on what
I'm doing wrong?  BTW, I left the tuned input in its final 
location under
the RF Deck for the calibration.>>

The filament choke and other parts should be connected. The 
resistor should go from the tube cathode or filament to 
ground. The tube should be cold.

73 Tom