From: "Terrell W. Fritz"
Date: Sat, 09 Mar 2002 21:09:21 -0700
Subject: Re: [TSSP] short H/D
Hi Paul, Sounds reasonable. I have 24 gauge wire and the taps can be those little clip jumpers they use in computers to set hard drives / mother boards and such. I can easily get that stuff from DigiKey. I have all sizes of surface mount resistors but they make them in all values. I would propose a fairly large coil to eliminate little defects and such. Perhaps a 12 inch Sonotube or a large plastic trash can or something. The large cans tend to be a little cone section shaped with the base smaller than the top which may be a problem. Sonotube has odd losses but they are stable for a short time frame. Don't mention flat coils to me :o)) I must have fallen down a spiral stair case or something as a child. I am just not a flat coil guy. Spinning those things drive me nuts and I have no talent for it... Others will have to figure that out. How about a 12 inch diameter Sonotube wrapped to the length of your choice with #24 wire and taped say every inch. If you could give me a rough resistor value that would help too. I think the taps should be evenly space since if they are not, someone may blame the current profile on non uniform taps messing with something. I think I have the measurement instruments part covered but if there is a special technique you like let me know too. If you could give me an idea of good sizes, resistor values, and such I can work on this and get it going. Cheers, Terry At 10:16 PM 3/9/2002 +0000, you wrote: >Hi Terry, > >I'm looking for unequivocal experimental evidence that the current >in a resonating coil can exceed the base current by quite a >noticeable amount in some geometries. This would provide an >experimental answer to Antonio's question to me from the pupman >list today: > >> Can Les be greater than Ldc? snip....
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.