Re: Transformer for Sale? POTENTIAL TRANSFORMER

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

Original poster: "Terry Blake by way of Terry Fritz <teslalist-at-qwest-dot-net>" <tb3-at-att-dot-net>

I must agree that it sounds like a pain to wind your own.  I bought a few
different spools of wire from Home Depot, just to find what would work best
WITHOUT having to wind anything.

The 500ft spool of 12 AWG wire in series with the 120 V AC input does work
really nice.  I measured the R and L and got 0.9 Ohms and 10.50 mH. The R is
determined by wire length but the L will change with the number of turns and
spool shape.  You want some R, and if you can get it from the wire, so much
the better.

The spool does get warm, but I have not found that it gets hot.  My runs
have been up to about 4 minutes.  It can be hard to take much more that at a
time anyway.

Here is more info on my setup.

http://www.tb3-dot-com/tesla/mrun/index.html

Terry Blake
http://www.tb3-dot-com/


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, April 17, 2003 1:03 PM
Subject: RE: Transformer for Sale? POTENTIAL TRANSFORMER


 > Original poster: "Mccauley, Daniel H by way of Terry Fritz
<teslalist-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>
 >
 >
 > I am just running the spool of wire in series with the "hot" 120VAC input
to
 > my potential transformer.
 > Both myself and Terry Blake do this.  The ballast does get warm, but not
too
 > hot.  If you were to run your
 > coil at more than 15 minutes continuously, then it might not be a good
 > ballast, but for short runs (which i think is
 > typical) it works fine.
 >
 > I don't have a picture available, but here is a link to Terry Blake's
 > website with a picture of his "poor man's ballast."
 >
 > http://tb3.phpwebhosting-dot-com/tesla/mrun/P9050002.jpg
 >
 > I'd save myself the trouble and forget about winding your own ballast.  Be
 > much easier to just buy the $10.00 roll and be
 > done with it.  The standard 500ft roll is already calibrated to ballast at
 > current at about 24-26A which is the optimal power input for these
potential
 > transformers.
 >
 > The Captain
 >
 >
 >
 >  > You have a 500ft spool of 12 AWG wire in series with the input of the
 >  > potential transformer on just one leg?  Or do you have two of
 >  > these spools,
 >  > one on each leg?  About what diameter is your 500 foot spool?
 >  >  I've got
 >  > 80lbs of 12 AWG magnet wire I'd like to use for winding my
 >  > own ballast on my
 >  > potential transformer.  Do you have any pictures of your
 >  > ballast?  I still
 >  > have vivid memories of running my potential transformer
 >  > without the proper
 >  > ballast and would like to learn as much as possible before
 >  > trying it again.
 >  >
 >  > Dave
 >  >
 >  >
 >
 >