Re: resonant freq.

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "D.C. Cox by way of Terry Fritz <twftesla-at-qwest-dot-net>" <DR.RESONANCE-at-next-wave-dot-net>


Inject a signal into the bottom of the secondary coil and then, using a
scope probe, hold a small 4-5" long piece of wire near the top of the coil's
toroid --- 1-2 in. away but NOT TOUCHING the sec. coil  This antenna will
pick up the signal and give you the resonant freq on the scope.  You could
also just use a 5 meg resistor between the scope probe and the toroid.

The lowest freq you can find will be the resonance point.

Dr. Resonance



----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, July 06, 2002 9:16 PM
Subject: resonant freq.


> Original poster: "george hadle by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<ckreol1-at-yahoo-dot-com>
>
> How does one experimentally measure the resonant
> frequency of a coil using physical, not inductive,
> connections.   Inject a frequency, then what?... Where
> do I meaure the voltage rise?
> Thanks
>
>
>
>