[Amps] Testing Tubes with a Henry 2K

[Carl]

How about removing one plate cap? Every 2x 3-500 amp Ive tried has enough 
tank circuit tuning range to use on 40 and 20 and dont worry about the Q.
Just remember to reduce drive power.

Carl


----- Original Message ----- 
From: "Donald Fox via Amps" <amps at contesting.com>
To: <amps at contesting.com>
Sent: Sunday, August 22, 2021 12:25 PM
Subject: [Amps] Testing Tubes with a Henry 2K


> Carl, et al:
>
> Has anyone contemplated what it would take to create a "dummy" 3-500 for 
> testing in cases like this?
> Something along the lines of a 3-500 base, with an appropriate resistor 
> (or group of them) that one could substitute for one of the tubes in the 
> series circuit.
> Cooling for said resistor(s) would be accomplished by the blower and 
> chimney in the case of a Henry, or Drake LB. Hopefully, the muffin fan on 
> amps like the SB-220/221 and Drake L7 could take care of that duty as well
>
> I know we have the smarts here to get it done, if it can be, reasonably.
> I myself would like to have such a thing on hand for future 
> maintenance/troubleshooting.
>
> Don
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