xfrmr question, was: Re: That other HV List

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

Original poster: "Peter Lawrence by way of Terry Fritz <teslalist-at-qwest-dot-net>" <Peter.Lawrence-at-Sun.COM>


Terry,
       I vote to allow all HV topics on this list. I'm interrested in TCs,
induction coils, CW multipliers, Marx generators, and coin-crushers, and
feel that there is enough commonality and cross-usefulness that it would
be a good thing.

So, here is my slightly off topic question. the "roll your own transformer"
web page <http://members.tripod-dot-com/~schematics/xform/xformer1.htm> has
the formula for Primary Turns:

N = (E X 10^8) / (4.44 X F X A X B)  Where F = frequency   A = area in sq.
inches.   B = magnetic flux assume 60,000

This is clearly for silicon-steel transformer core material. If I am using
a ferrite core with these parameters what is the formula?
	type 77 ferrite
	permiability	u = 1800
	saturation flux	Bs = 510 mT (at H=1194 A/m)
	residual flux	Br = 170 mT
	coercive force	Hc = 16 A/m

thanks,
Pete Lawrence.




 >
 >Original poster: "Matthew Smith by way of Terry Fritz <teslalist-at-qwest-dot-net>"
<matt-at-kbc-dot-net.au>
 >
 >Hi All
 >
 >There was a lot of excitement about an HV sister-list, but now just
 >silence.  Does that mean that non-TC HV stuff is temporarily on-topic on
 >this list still or...
 >
 >Cheers
 >
 >M
 >
 >--