Grounded grid linear amp, idling grid current question?

[Chris Wilson]

I am restoring and converting a Henry RF generator that uses a 3CX3000A7 valve. I am at the stage where I am running filament current into the valve, running the blower for cooling, and monitoring filament voltage and current, and PA grid current. Filament voltage and current are correct. There is no drive being applied to the amp, and no output load. The OE metering shows zero grid current. Is that to be expected without any HV applied to the anode? I believe it will need the HV turned on to show any idling grid current, but wanted to be sure. Thanks.

[djsb]

Is it any of these you are talking about

http://www.n4tze.com/henryRFgenerators.htm

David.

[Chris Wilson]

Similar, it's a 2000D model, manual is at http://www.gatesgarth.com/henrymanual.zip

Schematic of RF section in question below, thanks David