How do you tune a tesla coil?

To: tesla-at-pupman-dot-com
Subject: How do you tune a tesla coil?
From: "Powdermnky007" <Powdermnky007-at-hotmail-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Mon, 22 May 2000 07:55:10 -0600
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

How does one go about tuning a TC?