RE: [TCML] Spark gap comparisons

["Rich Schmuke" <rdj@xxxxxxxxxxxx>]

Jeff , can you send me some information on your "low" voltage coil systems.
I have a transformer sitting on my shop bench right now that is about
3680Vac @ one amp CCS . It was a input 240/4160@1amp transformer that some
secondary windings were removed to make it a plate transformer. The
secondary is 18ga wire so it is well built. No center tap on mine. I no
longer need it as a plate transformer so I could go as a Tesla Coil unit..

rdj@xxxxxxxxxxxx 

Rich ,from the middle of Missouri

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Jeff Behary
Sent: Saturday, February 23, 2008 10:55 PM
To: Tesla Coil Mailing List
Subject: RE: [TCML] Spark gap comparisons


Hi Bart, John, and others,
 
I think the type of gap used depends a lot on the individual coil.  I've
seen coils operate perfectly with gaps that
were not always logical.  One coil I have uses a 1000V power transformer
rated at 1500 mA with a .60 mfd mica cap.
It uses only a single 1/4" diameter tungsten gap with copper-finned
heatsinks.  How it functions at all is beyond me, but
it does a fine job!
 
At the same time I have coils that use 3000V 150mA transformers and .01 mfd
mica caps that would not even think about
working properly without at least a 2 or 3-series spark gap of 3/8" diameter
tungsten. 
 
I have a rotary spark gap and a half dozen static spark gaps just for
testing each coil I make.  Its interesting just to compare
results.   Sometimes several will work well, and other times one gap will
tend to work better than the rest.  
 
Jeff Behary
 
> > I think a rotary or triggered gap may or "may not" outperform a static >
gap if all at 120 bps and because one can't assume all static gaps are > the
same (if they do, their naive). Maximum spark output as a > comparative
value can be good or bad depending on many variables. But > given the data
at the time of measurement, usually a single conclusion > would be made
(what you see is what you get).> > I agree that more of "us" should join in
and do the comparisons that you > have done (as you know, you are in high
regard with me in this respect). > But even though that is true, I still
have doubts on conclusions on some > things (not to be disagreeable, but
simply attempting to understand the > conclusions with the tests at hand). I
guess it comes down to the more I > learn, the more I don't take everything
at face value and give a little > more attention to statements or
conclusions.> > I'm uncertain on many past gap experiments of comparison. I
think all > test are certainly worthwhile and tell us something, but I'm not
sure we > have actually determined well what it is the tests have shown us.
More > work is certainly needed in this area as you have stated in just
about > every post on the subject. I think your exactly right about that.> >
Best Regards,> Bart> 
_________________________________________________________________
Helping your favorite cause is as easy as instant messaging. You IM, we
give.
http://im.live.com/Messenger/IM/Home/?source=text_hotmail_join______________
_________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla

_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla