[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: [TCML] Question on Coil with Missing Turns



Hank,
thanks for the info on your experience with the missing turns. Do you recall if the primary tuning point changed due to the missing turns?
Jim
 

> From: dr.hankenstein@xxxxxxxxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: RE: [TCML] Question on Coil with Missing Turns
> Date: Sun, 31 Jul 2011 06:34:59 -0700
> 
> Jim,
> 
> I would tend to think you may have nothing to worry about for this reason:
> About three years ago, while setting up Zotzilla, which is a 20" by 42" coil
> with a 5 foot corona ring, I inadvertently connected the primary to the
> wrong tap. During the subsequent full power run, the coil flashed over in
> two places which can be seen by the "splicing tape" on the following photo:
> http://drsparksite.com/images/wwt2011/101.jpg Several turns were removed,
> the carbon was cleaned and the wire was carefully spliced back together.
> Oddly enough, the coil has never run better. It produces 10 footers with an
> input power of 240 volts, 45 amps and 7.5kva using a 5kva pole xfmr. I have
> purchased new wire, BUT, since it's running so good, I'm not sure if I
> really want to rewind it. I'm worried that a rewind would ruin the
> performance, although the coil would "look" good again.
> 
> Anyway, that's my experience with "missing turns"
> 
> Hank 
> 
> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
> Of James Zimmerschied
> Sent: Saturday, July 30, 2011 6:58 PM
> To: Tesla
> Subject: [TCML] Question on Coil with Missing Turns
> 
> 
> I have recently obtained a 12" diameter by 45" coil with about 700 turns of
> #18 wire. It had sustained damage from previous operation and my friend
> removed the burnt turns and spliced it. There is about six inches of coil
> below the gap which is about 1/2" wide. The remaining 39" is above the gap.
> 
> I am wondering if having two coils in series create any significant change
> in the coil characteristics? I have run this coil and don't get any corona
> at the gap since it was well spliced and covered with epoxy.
> 
> Jim Zimmerschied
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
> 
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
 		 	   		  _______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla