Re: Tesla Coil Efficiency Test

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

Original poster: "Barton B. Anderson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>

HI John,

I'm almost there. I've gone through a few of my solar cells and various
analog panel meters and found
one that swings well to 3/4 deflection using an autobulb at 14 volts. I'm
in the process of mounting
these two items in a box where I can plug the meter and the pickup coil or
variable supply into. I'm
hoping to get this done today and to begin testing the number of turns
needed for the pickup coil.
Everything else on the coil side is ready to go.

Take care,
Bart

Tesla list wrote:

> Original poster: "John H. Couture by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <couturejh-at-mgte-dot-com>
>
> Bart -
>
> When you make the test I suggest that you keep the input wattage just below
> the point where streamers would occur. Raise the variac voltage to say three
> different input wattages below the sparking point and record the lamp
> wattages. This would give us three points on a curve of input vs output
> watts. This would also give us three efficiencies which should be close
> together. We will then have a start for discussions regarding the test.
>
> Thank you and good luck with your tests.
>
> John Couture
>
> ---------------------------------
>
> -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: Friday, July 05, 2002 6:19 PM
> To: tesla-at-pupman-dot-com
> Subject: Re: Tesla Coil Efficiency Test
>
> Original poster: "Barton B. Anderson by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>
>
> Agree. The thermogun will read the surface temp of the bulb. Air currents
> won't be a problem. Their
> easy to calibrate as well (boiling water as temp source). I may have one
> floating around at work. I
> would need to measure my existing coil. John, after the reading the test
> procedure I now "get" what
> your doing here with the bulb measurment. This is a standard form of
> comparison measurement. I'll use
> volt/amp concentric readings. I've got variacs and all that jazz so I don't
> see anything upfront that
> would hold prevent me from making the measurement.
>
> Bart