From: Greg Leyh
Date: Sat, 07 Sep 2002 17:51:58 -0700
Subject: [TSSP] Quiz, Sec diameter question
At 01:16 AM 9/6/2002, Paul wrote: >[snip] >By way of encouraging coilers to delve more into the theory of the >subject, I thought of running a quiz game. Something along the lines >of > > http://www.abelian.demon.co.uk/tesla-quiz/ > >Several of the questions would require a bit of thought and some >delving into web pages and text books. Wonder whether something like >this would appeal to coilers, either as a one-off or an on-going game? Perhaps if they could convert their Groat winnings into a plethora of TC parts, at the prize booth? ^_^ I've been mulling over the common wisdom of keeping secondary aspect ratios fatter than about 5 to 1. What effect is it, that limits the performance of a secondary as it gets thinner? It's certainly not Q degradation due to copper losses. From a design standpoint it appears that a thinner, more densely turn-packed secondary offers both a higher resonant freq (Fo) and output impedance (Zo), without reducing the Q to unusable levels. -GL
Maintainer Paul Nicholson, paul@abelian.demon.co.uk.