RE: A photographic tutorial of Pancake Coil winding...with movies...(fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Thu, 21 Jun 2007 07:53:55 -0500
From: David Thomson <dwt@xxxxxxxxxxxx>
To: 'Tesla list' <tesla@xxxxxxxxxx>
Subject: RE: A photographic tutorial of Pancake Coil winding...with
    movies...(fwd)

Hi Jeff,

What you have here is a combination flat spiral and tall solenoid coil.
Bart just pointed out that the metal pipe you are using acts like a
waveguide, or third coil.  It would be more appropriate to call this a
combination coil, rather than just a pancake coil.

You should be able to change to quality of the spark output by changing the
tube length.

BTW, I like your winding technique with the roll of paper.  Have you
considered using a roll of electrical tape?

David W. Thomson