RE: Calculation of tank cap

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

Original poster: "Loudner, Godfrey by way of Terry Fritz <twftesla-at-qwest-dot-net>" <gloudner-at-SINTE.EDU>

Hi Alan

Jim has a schematic that explains the configuration for four transformers at
http://home.earthlink-dot-net/~jimlux/hv/xfrmr1.htm , and his web sight is at
http://home.earthlink-dot-net/~jimlux . You just have to get the phasing right.
The extra winding does not interfere with anything if you do not attach the
cap. These are unique HV transformers and you might need the extra winding
in the future. I would not cut off the extra winding. If you are going ahead
with your configuration, I would look into getting or building an extreme
isolation transformer to place between the service mains and your proposed
power supply. The history of these transformers point out that two in series
with a resonant tank cap makes for one heck of a tesla coil power supply.
Much more about these transformers can be found by going to
http://www.pupman-dot-com and typing H&R transformers into the search engine.

Godfrey Loudner

  
 

> -----Original Message-----
> From:	Tesla list [SMTP:tesla-at-pupman-dot-com]
> Sent:	Sunday, December 02, 2001 10:48 AM
> To:	tesla-at-pupman-dot-com
> Subject:	Re: Calculation of tank cap
> 
> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <ajones18-at-bellsouth-dot-net>
> 
> >Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> ><jimlux-at-earthlink-dot-net>
> 
> >You can run 4 in series by using the 600V winding to feed from one to
> >another.. The core will (potentially) run at high voltage, so the
> >outer transformers in this scheme need to be on suitable insulating
> >standoffs..
> 
> Hi Jim. I don't really understand what you're saying here. I had in
> mind to just wire the secondaries together and ground the midpoint of
> the two closest ones. This would put 10kv on the outer two? I don't
> see where the 600v winding fits in the scheme. Had in mind to just cut
> them out and do away with them.
> 
> >It's also really heavy.  I built a set of 4 transformers to make what
> >is effectively a 20 kV, 250 mA NST, by bolting them to a sheet of
> >aluminum then bolting that to a handtruck.  It's more than 100 pounds
> >all together...
> 
> I can imagine.
> 
> Alan
> http://personal.atl.bellsouth-dot-net/~ajones18/index.html
> 
>