From: "Malcolm Watts"
Date: Wed, 25 Oct 2000 11:00:21 +1300
Subject: Re: [TSSP] Q goes a long way
On 24 Oct 00, at 14:59, Paul wrote: > boris petkovic wrote: > > > I was rather thinking on possibility how much close > > one may go with the prediction to the real Q if > > completely exclude dielectric form losses. > > Yes, I see what you mean. A precision inductor with no > question of dielectric loss. > > However I think that our Q factor predictions are so poor > that the trouble of constructing such a thing would not be > worthwhile at the moment. Would be different if we were > chasing the last few percent accuracy, but then we would > have to figure out how to make such a coil self-supporting > while still preserving the current cylinder approximation. I have a small coil that would come close. It is self- supporting. However, the varnishing which gives it that property would be a minor drawback. It is wound using 80 strand litz and can be easily slipped off its HDPE former. L is about 350uH. H/D is a touch over 1:1. Regards, Malcolm
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.