From: "Malcolm Watts"
Date: Fri, 3 May 2002 18:26:24 +1200
Subject: Re: [TSSP] Secondary voltage stress factor
Hi Terry, On 2 May 2002, at 17:43, Terrell W. Fritz wrote: > An observation... > > Hi Adam, > > A local coiler here had the same problem. We raised the secondary about an > inch and very carefully tuned to coil and the sparks went away just fine. > > If the coil is out of tune, I think you get some pure transformer action (turns > ratio voltages) and you can get very big primary to secondary arcs (we got a > foot+ !) When the coil is in tune, the voltage on the secondary smooths out > and everything is fine. The tuning was very sharp! We had to get it within > 1/4 turn on like a 12 turn primary. In our case, even with perfect tune will > still had a little problem near full power (15/120 NST) so we raised the > secondary a little which fixed it right up. > > Cheers, > > Terry I/m not sure I agree with the assertion about transformer action. For one thing, coupling is still very loose. I *am* willing to bet that a significant voltage maxima occurred lower down the resonator than usual. What does the model have to say about it? Turns ratio is actually the best you can do if k = 1. Regards, Malcolm > > At 07:00 PM 5/2/2002 -0400, you wrote: > >I keep getting strikes between my secondary and primary coil, what can i do > >to stop this? i have already trimmed a little wore off my secondary, and > >primary, that did not help > >Thanks > >Adam > > > > >
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.