I need some help and can not find the answer anywhere.

When neutralizing a triode, how much leakage between grid circuit and
tank circuit is allowed?

I am looking at the output of the final loading cap with a scope and get
a few volts of RF when the NC is nulled. This is with 20 ma grid drive
or about 10W input. The output just tickles the wattmeter on the 30
watt range and rises to about 10w when the NC in moved from the null
position.

Second question: should I see any leakage when the filament is off?

Thanks for your help.

Jack



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