[AMPS] Practical PI Nets

[Peter Chadwick]

Rich says:

>Resonance is where yo' dipmeter finds it.  .  If the dipmeter does not 
>dip on a certain frequency, the tank circuit is not resonant on that 
>frequency.  .  .  

Rich, you sound like Humpty Dumpty  -  'Words mean what I want them to'

First you defined resonance as where XL = XC. Now it's where the dip meter finds
it. For circuits with low Q, they aren't the same.

Sure, you can ignore the theory for a lot of the time and get there by 'green
fingers'. It doesn't always work, and can lead others astray. The only
definition of resonance truly applicable is that applied voltage and current are
in phase. As the plate wants to see a flywheel tank with a resistive input,
that's the desired resonance - not the dip meter, not XL = XC.

73

Peter G3RZP



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