Re: Parallel and Series LCR Circuit Qs

[Terry Fritz <twftesla-at-uswest-dot-net>]

Hi Bill,

At 04:31 PM 8/10/00 -0600, you wrote:
>on that fateful day 8/9/00 7:09 PM, Tesla list uttered:
>
>> Original poster: Terry Fritz <twftesla-at-uswest-dot-net>
>
>> See the following page that explains basically how I find the output
>> impedance of a coil.  Usually, I do "trial and error" into the expected
>> equivalent static load to find the best power to the arc.
>> 
>> http://users.better-dot-org/tfritz/impedance/impedance.html
>
>In your MicroSim diagram, what is the lumped primary resistance (gap drop
>plus primary wiring)?  It looks like it is 3 ohms, which seems awfully
>small...
>
>- Gomez (Bill Lemieux)
>

It really is three ohms which is pretty close.  If the primary current is
12 amps RMS ( a typical primary RMS current), that resistor will burn off a
whooping 432 watts.  Almost all in the gap arc.  That is where about 1/2
the power is lost in my big coil.

The value is found by running the coil without a secondary and measuring
the time it takes for the primary circuit to naturally ring down from this
loss.

Cheers,

	Terry