[SEL] Cores for coils

[Orrin B Iseminger]

If I were to wind a low tension coil, I'd use ordinary black iron wire.
There is a trick that will make it arrow-straight: Roll out a considerable
length, then stretch it a bit.  It should be a simple matter to set up a
shear to cut it to uniform length.  (I would use a shear, not a
"pincers-type" of cutter.  A pincers leaves a sharp, ragged edge.

If you don't want to make a "showy" low tension coil, use the E-core out of
a small transformer.  A Thorardson coil of mine has an E-core in it.  The
whole works is potted in a metal can.  It was originally potted in asphalt;
but, wanting to avoid the mess I used wax when I re-built it.

Orrin Iseminger
Colton, Washington, USA
http://users.moscow.com/oiseming/lc_ant_p/menu.htm
So many projects.  So little time.   

-----Original Message-----
From: sel-bounces at lists.stationary-engine.com
[mailto:sel-bounces at lists.stationary-engine.com] On Behalf Of
rdhaskell at juno.com
Sent: Thursday, July 17, 2008 9:24 AM
To: sel at lists.stationary-engine.com; stationary-engine at oldengine.org
Subject: [SEL] Cores for coils

Hi all.
I am going to wind some low tension coils.  In the past I used gas
welding rod for the core.  What materials have you used?  Coat hanger
wire comes to mind.  Thanks.

Ron Haskell
rdhaskell at juno.com
Riverside, California USA
http://picasaweb.google.com/RonHaskell