> >Circulating currents are a function of loaded or operating Q as well as
VAR
> >power (or current or voltage if you like and impedances). Even relatively
> >small tubes can overheat big wires when operating Q is high.
> >
> ** True, Tom. but operating Q is designed in.
Operating Q varies with loading and tuning setting, and Q also varies with
power level becuase the load on the device end of the tank changes.
We may design Q to be a certain value in a certain operating condition on a
certain frequency, but it is not possible to have anything close to a fixed
operating Q in the real world.
73 Tom
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