Round vs flattened primary tubing

• To: "'Tesla List'" <tesla-at-pupman-dot-com>
• Subject: Round vs flattened primary tubing
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Sun, 7 Jun 1998 23:18:54 -0500
• Approved: tesla-at-stic-dot-net

----------
From:  Steve Young [SMTP:youngs-at-konnections-dot-com]
Sent:  Saturday, June 06, 1998 11:59 PM
To:  Tesla List
Subject:  Round vs flattened primary tubing

To all,

Winding a primary with refrigerator copper tubing in a pancake shape works
well, as many posts attest.

Suppose the tubing was run through some rollers to flatten it out.  It
would still have rounded edges for corona control, and it would have the
same skin effect surface area.  It could now be wound more compactly which
would increase the inductance per length slightly.  Or, the same spacing
could be maintained, which would increase the turn to turn voltage
breakdown.  Would there be any real practical advantage to such a primary,
other than it could be secured easily by winding it through saw slots in
the supports?
I suspect the effort to flatten the tubing would not be worth whatever
advantage there might be.  Comments?

--Steve

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