RE: chokes

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

Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Gary.Lau-at-compaq-dot-com>

The discussions on this List on whether or not chokes are useful can
choke a horse.  The archives and search engine on the www.pupman-dot-com
site exist just so that we don't have to repeat these discussions (more
than every other month).  Please use them.

There are two schools of thought.

One school says I used such and such a choke and I haven't had any
problems, so this proves that chokes work.  I don't need no stinkin'
analysis.

The other school says I have studied and simulated the underlying
mechanisms and consequences of using chokes, and my analysis clearly
supports the theory that chokes cause more problems than they solve.
Based on this plus that my NST is still alive, I conclude that an R-C
network is the preferred protection network configuration.

My web site details my thoughts on this.  See
http://people.ne.mediaone-dot-net/lau/tesla/protection.htm

Terry Fritz has also done considerable analysis and measurements on this
topic.  See: 
http://hot-streamer-dot-com/TeslaCoils/MyPapers/rlcfilter/rlcfilter.html,
and 
http://hot-streamer-dot-com/TeslaCoils/MyPapers/rcfilter/rcfilter.html

Gary Lau
MA, USA


 -----Original Message-----
From: 	Tesla list [mailto:tesla-at-pupman-dot-com] 
Sent:	Wednesday, October 03, 2001 10:25 AM
To:	tesla-at-pupman-dot-com
Subject:	chokes

Original poster: "Mr Gregory Peters by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <s371034-at-student.uq.edu.au>

Thank you all for your individual input on chokes. However, this has 
served to confuse me even more. Some of you are using a few turns on a 
3/4" air core. Some of you are saying not to use an RF choke at all, 
and yet more are saying to use many turns on a ferrite core. All the 
repliers have claimed that their particular system has worked very well 
for them. This is all really confusing. I would very much like to hear 
what people like Richard Hull and Quick have to say on this matter if 
they are still out there.

Richard Quick used to use 18 turns on a 2" ferrite core. However, this 
is exactly what I was using when my neon died, so I am a bit skeptical 
of it. Conversely, I ran my coil successfully for months without any 
chokes at all! help!!!!!!

Greg.