[Amps] Parasitics & Filament Sag

[Peter Chadwick]

Rich said:
>XL = XC isn't rigorous enough on your side of the pond?<
It isn't on your side either, unless you're willing to accept an approximation that falls over completely for low Q in anything other than series circuits.
If you use the definition that resonance is where the volts and amps are in phase, you have a definition that holds for all cases, and you don't get this situation with low Q where XL doesn't equal XC. Basic AC theory.
As far as the PA tube is concerned, it wants to see a resistive load i.e. resonant by my definition.

73
Peter G3RZP