RE: Does it matter which way i wind my secondary?

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

Original poster: "Ross Overstreet by way of Terry Fritz <twftesla-at-uswest-dot-net>" <ross-o-at-mindspring-dot-com>

Drew,

Be careful - It is very dangerous to wind the primary and secondary in
OPPOSITE directions.  This can be almost as dangerous as building a
secondary out of aluminum wire (search the archives).  It must also be wound
from the bottom up so the voltage will RISE.

JUST KIDDING!

Sorry bro, couldn't resist.  It doesn't matter how you wind it.  As long as
it is one long uninterrupted section of wire you should be just fine.  I
like the RQ method of attaching the ground connection.  He suggested
soldering the wire and a nut to copper plate and epoxying this plate to the
lower end of the coil form.  This prevents the wire from entering the coil
form.  I like to route the HV end of the wire into the top of the form and
attach it to a stud that sticks out of my top plate.  This works fine as
long as you put 2 or 3 baffles inside the coil form to keep the HV from
tracking down the inside and blowing through into the wire or ground
connection.

I recommend coating the wound secondary with any of the 2-part epoxy based
coatings on the market.  I have seen Berh SuperBuild 50, Pour-On, and
Glaze-Coat all used with excellent results.  You will need a mechanical
rotator for the coating process since it takes about 5 hours to set.  They
leave a highly scratch resistant coating that is about 50 times thicker than
a typical coat of poly.  I don't have the electrical specs of the epoxy but
experience shows that it works as well as polyeurathane.

Seeya,
Ross-O
http://users.better-dot-org/roverstreet/

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Saturday, February 17, 2001 5:14 PM
To: tesla-at-pupman-dot-com
Subject: Does it matter which way i wind my secondary?


Original poster: "Drew Murray by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<drewallmighty-at-hotmail-dot-com>

Does it really matter which way i wind my secondary? Does it have to be
wound upwards or downwards? Does it have to be wound the same way the
primary is, or the opposite? Somebody let me know because i want to be sure
before i wind my new 8" green pvc sewer pipe with my new $40 roll of brand
new 24 awg soft copper magnet wire. I have built two successful coils while
in complete disregard to whether the way the wire is wound affects the coils
performance. I want to get this one right and i have put a lot of money into
it to see that is is very successful and impressive.
please let me know.
                                                        The curious,
                                                        Drew Murray
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