RE: [TCML] Smallest gauge magnet wire for Secondary?

["Jim Mora" <wavetuner@xxxxxxxxx>]

Hi,

How much power and what frequency will you be running (skin depth). I plan
to wind a 12" form with #18 awg magnet wire. You want a 3-5 diameter to coil
length ratio so lets take 4.5 say 54 iches. 18 is bare .0403" + .003
build=.0433"/turn = 21.2turns /inch=1144.1 total which is a good number as
we like more than 1000 turns. Skin depth is .01 or .02 total (both sides) so
watch that too. Self res=116KHz or probably ~68KHz with the top load.

I used #22awg on my 8" coil. I would go directly to say Essex. Ebay is
gouging at this point.

Run Java TC to get the real numbers!


-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of ConorPerry@xxxxxxxxxxx
Sent: Thursday, December 04, 2008 5:03 PM
To: Tesla Coil Mailing List
Subject: [TCML] Smallest gauge magnet wire for Secondary?

Looking at the price of copper wire makes me dizzy.  I'd like to build a
8"-12" secondary coil now.  When I work out the calculations for aspect
ratios for tight wound secondaries the copper size ends up between 19-22
gauge.  1000 wraps of a 8" diameter form is about 2100 feet, 12" diameter is
3140 feet.  That's alot of copper!

I'm not worried about the winding process, setting up a rotary encoder and
slave stepper motor won't be a problem.  So, ignoring easy to build tight
windings ... what's the smallest gauge that's realistic?
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla

_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla