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Re: [TCML] Primary
Stan,
What you can do, and what I would probably do, is to
set the bottom of the secondary a little *below* the plane
of the primary if needed to get tight enough coupling.
I did that a few times on various coils. Works fine.
John
----------
-----Original Message-----
From: stanley miller <swm334@xxxxxxxxx>
To: tesla@xxxxxxxxxx
Sent: Wed, 27 Aug 2008 5:00 pm
Subject: [TCML] Primary
Hi again guys,
I got my primary done today, and to my dismay half way thru realized
the spacing
between primary and secondary was not going to be as I had calculated
which was
to be 2" inches. My problem is I started the first turn right at 2"
and built
out from there so as it comes around I end up with about a 2 1/2" inch
gap
between the primary and secondary. I have read that the gap should be
between 1
to 2" inches so this might be pushing it with a 15/30 nst. Regardless
I
finished winding it and it came out pretty good. I did wind it with
more turns
then necessary as I want to be able to use it in the future on a bigger
ma rated
nst. The secondary is already done it is 4" inch dia by 22'' with 24
awg.
So my question is will I lose good coupling with this large of a gap?
If so at
this point the easiest thing to change would be to make another
secondary with a
bigger dia. Any ideas? =2
0Thanks!
Stan
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