From: "Terrell W. Fritz"
Date: Thu, 15 Feb 2001 20:15:06 -0700
Subject: Re: [TSSP] Top voltage testing
Hi, > >Three factors may affect the coil's Zft. >http://hot-streamer.com/temp/SmallCoilSetUp.jpg > >1. The top terminal is a wire to a bolt with large steel washers I removed the top terminal and cap and the f1s changed to 362.0 and 315.2 KHz. > >2. The ground plane is split but not perfectly, and it too uses large steel >washers for the grounding stud. I can't change that easily but placing large steel objects around the base did not have much affect. > >3. The sensor box is near the base and may cause some distortion. I moved it away but it made no difference. I think the probe loading lowering the Q is causing the unexpected Zft. I can't change that, but maybe Paul can figure it out. Cheers, Terry
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.