[AMPS] Loss in doorknob caps?

[rakefet@rakefet.com (Vic Rosenthal)]

Nancy & Steve Lawrence wrote:
> 
> I'm shunt feeding my tower for the low bands. When replacing air variables
> caps with fixed doorknobs, the reflected power is much greater. Any
> thoughts on the losses in doorknob caps vs frequency?

Someone else can tell you about losses, but I would expect that the stray
inductance in the doorknobs would be much greater than with air variables. 
This, combined with the tolerance of the capacitors that you are using probably
changes the tuning of the system.

73,
Vic, K2VCO
Fresno CA

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