[Amps] Time to ask for help.

[Bill Turner]

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On Sat, 25 Jul 2015 22:28:40 +0100, you wrote:

>Have you checked out your RF deck by removing each tube and replacing it 
>with a carbon resistor of/at/near the resistive load (RL) for the tube 
>operating conditions (get this from the data sheet) 

REPLY:

If you remove the tube, you are also removing the tube's internal
capacitances. Better to leave the tube in place and just remove all
voltages from it. Especially important at VHF where the tube's
capacitances form a significant part of the tank circuits, both input
and output. 

You can still use the resistor as above. Just be sure to remove it
before applying voltages again lest you have a spectacular light show.
Don't ask how I know. :-)

73, Bill W6WRT