From: "Terrell W. Fritz"
Date: Wed, 30 May 2001 13:14:59 -0600
Subject: Re: [TSSP] Secondary in motion
Here is a "clue" about racing arcs posted by Ed on the other list today... My experience is that racing sparks on the secondary are almost always caused by overcoupling, poor tuning or overpowering the coil. Did you re-tune with the new larger toroid? Three 15 / 60 transformers should not over power a 6.5" diameter secondary. Maybe the old primary power set up was actually current or voltage limiting the primary power to the transformers - and now you are actually inputting more power. Coupling is tricky sometimes. At a particular power level, the coupling might be just fine. Then you apply more power and find that you need to back off (raise the secondary) the coupling at this higher power level to prevent racing sparks. Ed Sonderman
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.