Re: New coiler, also in search of 15kv and De-Potting tar filled NST's

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>

I usually remove half and get 1.5-2x the current after putting it in 
oil (originally 6500v 20mA that had no tar to begin with, just took a 
hammer and screwdriver and knocked out 1 side, with 2  I can get 13kV 
32mA-ish). Probably 1.5x is the limit with air cooling with any 
decent life expectancy. I've heard of some removing all the shunts 
and just using wire resistance as the only current limiter and get 4x 
current, but with 16x heating probably didn't last long.

Mike
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Saturday, May 06, 2006 4:16 PM
Subject: Re: New coiler, also in search of 15kv and De-Potting tar filled NST's


> Original poster: "Chris Farmer" <cfarmer@xxxxxxxxxxxxxxx>
>
> Speaking of melting the tar out.  How much more current do you get 
> per core plate that you remove and is there a limit to how much 
> power a NST can handle before it begins overheating.  Also when 
> removing the plate is it relitively easy - as in just detach a 
> section of the core and slide out the windings then just slide em 
> back on, or are they wound threw a physically solid core?
>
> ~Farmer
>
> ----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
> To: <tesla@xxxxxxxxxx>
> Sent: Saturday, May 06, 2006 2:31 PM
> Subject: RE: New coiler, also in search of 15kv and De-Potting tar 
> filled NST's
>
>
> > Original poster: "Jack King" <ekklekktikk@xxxxxxxxxxx>
> >
> >
> > Hi Drake,
> >
> > If you don't have any luck searching your local neon shops, I can 
> > offer you a 60 ma transformer for between $50-$75. France and 
> > Allanson's that are mint get the most$, Newer Magnetek's are 
> > slightly less, and if the bushings have a chip (a cosmetic issue 
> > rather than performance ailment) then I adjust the price downaward accordingly.
> >
> > Seeings that there has been a lot of talk with regards to 
> > dislodiging cores and coils from their tar filled homes, I thought 
> > I'd mention this; I have half a dozen or more  60 MA 12 and 15 kv 
> > NST's that have had one or more of the HV bushings sheared off. 
> > These are other wise great units, SO, if some ambitious soul wants 
> > to have a backyard tar melting festival, these would be PRIME 
> > candidates for either de-shunting and/or just paralell connection 
> > of multiples for greater current...
> >
> > If interested in one or more, let me know. I also get great 
> > commercial shipping rates and am very flexible with regards to 
> > crating and shipping...
> >
> > Jack 801-604-5136
> >
> > > From: "Tesla list" <tesla@xxxxxxxxxx>
> > > To: tesla@xxxxxxxxxx
> > > Subject: New coiler, also in search of 15kv
> > > Date: Fri, 05 May 2006 22:31:25 -0600
> > >
> > > Original poster: "Drake Schutt" <drake89@xxxxxxxxx>
> > >
> > > Hi, I too am planning to build a tesla coil over the 
> > > summer.  While ebay is alright, the bidding wars can cause major 
> > > headaches.  Does anyone have a NST @ 15KV, 30 or better yet 60ma 
> > > they would be willing to sell?
> > >
> > > -Drake in Memphis