Rich says:
>? When an L-network is resonant, it is a dead short, Peter.
Rubbish. Twaddle. WRONG!!! Do the mathematics of series parallel transforms.
>? The Eimac definition of R/XC1 is one. The other definition of Q
is a
>lot more complicated and gives a different result. I use Eimac Q.
I am
>lazy.
That's an approximation that applies only to the complete network and falls
over at low values of Q. It may be one you can get away with - it doesn't
mean that it's right.
>> Further, you have not yet given a rigorous definition of
resonance
>>capable of being modelled mathematically.
>? equal and opposite reactance - - which does not mysteriously
>disappear whenever a dipmeter is brought near.
Only applicable to very simple circuits, and the 'resonant' frequency that
it gives is not the resonant frequency that we want - which is where the
correct non reactive load is presented to the PA tube.
>? The advantage of the dipmeter is that it obviates prestidigitations.
Reinforces misconceptions about technical matters
cheers, Rich
73
Peter G3RZP
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