RE: Demos (Re: Model T Spark Coil Powered Tesla Coil)

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

Original poster: "David Kyle by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dave-at-kyleusa-dot-com>

Well there is no question it could give one heck of a shock, maybe even
lethal under the right conditions, but 36,000 Volts seems pretty
optimistic. 

Note that the spark coil is being over-voltaged by running it at 13.5
volts instead of 6 volts as in a model T and the current draw is around
1.5 amps. It has a very healthy looking spark and can even be made to
run a small Jacob's ladder.

To resolve the voltage question I first tried to measure it with a Fluke
high voltage probe however I was unable to get a reading. The spark coil
choked every time the probe touched the terminal (probably not a high
enough impedance probe). 

Failing that I set up a measured spark with two tungsten points. The
maximum starting arc was at 0.65 inches or 1.65 centimeters which works
out to be slightly under 20,000 volts. I estimate the current to 1
milliamp or less.

Dave

=========================================
Dave Kyle
Austin, TX USA
Email: dave-at-kyleusa-dot-com


-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com] 
Sent: Tuesday, February 19, 2002 10:06 PM
To: tesla-at-pupman-dot-com
Subject: Re: Demos (Re: Model T Spark Coil Powered Tesla Coil)

Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<davep-at-quik-dot-com>

Tesla list wrote:
> 
> Original poster: "rheidlebaugh by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>
> 
> Please be mindful. That old MOD "T" coil puts out 36,000 volts, while
not
> viewed as lethal It will distort your vocabulary and your social
standing
> should you touch the high voltage button terminal while running it.

	hmmmmm.

	Measured?

	When i used to use such a coil, the achievable 'primary'
	gap spark over looked more like 3600v.  (I'd no meter at the
	time & it may have been a weak coil...)  36,000 would spark over
	an inch or so, without looking it up....

	best
	dwp