[Amps] Testing Tubes with a Henry 2K

Joe nss at mwt.net
Sun Aug 22 12:33:40 EDT 2021


Using OHMS law,  that would be a resistor of 0.35211 Ohms, and 71 watts, 
YIKES!

Joe WB9SBD

On 8/22/2021 11:25 AM, Donald Fox via Amps wrote:
> 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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