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Re: [TCML] Secondary form material
PVC is fine and most people use it. Find a size that you can get simple
plumbing end conductors eg a screw on one for the base.
Dry the PVC with heat and coat inside and out.
No advantage to acrylic IMHO.
My 6 inch PVC coil has produced sparks 3 times the length of the secondary
winding and is still in daily museum use after 5 years at lower power. If
you can beat that then good on you.
Peter www.tesladownunder.com
----- Original Message -----
From: "Andrew Robinson" <teslamad@xxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Saturday, June 27, 2009 2:57 AM
Subject: [TCML] Secondary form material
As many have already discovered, PVC is apparently a terrible material to
use as a secondary coil form. About a week ago my engineering group also
discovered that acrylic is extremely hard to work with. We ended up
cracking our only secondary coil form which we slaved over to find! So my
question to everyone out there is what on earth should we use for the
secondary coil form. We need a 4" OD coil form and if possible, if you can
name a material that can also be an 1/8" thick we have a nice cutting tool
that makes the most perfect end caps. So ideally 4" OD and 3.75" ID is
perfect for what we need. I've called numerous plumbing companies with no
help what so ever. Thanks everyone!
Regards,
Andrew Robinson
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