Re: This week is the week...need help on spark-gap spacing
Subject: Re: This week is the week...need help on spark-gap spacing
Date: Tue, 3 Jun 1997 10:16:21 +1200
From: "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz>
Organization: Wellington Polytechnic, NZ
Just reading this makes me offer a caution regarding
primary Q measurement....
> From: Shawn Collins <rubidium-at-worldnet.att-dot-net>
> To: tesla-at-pupman-dot-com
> I am finally at the end of a three month endeavour and need help on
> my spark gaps.
> I have a 15KV 60mA neon, 15 turn 3/8" tubing primary with .0105 uF flat
> plate cap (freezer bags and aluminum foil), 1050 turn 6 " secondary (#22
> AWG) and 24"x4" torroid. I am using a single forced-air gap.
> I have checked the resonant frequencies of my primary circuit with
> sine generator and freq counter set up and have an incredibly high-Q
> primary. (deviating 5% from center frequency I almost lose the signal).
Don't forget, the gap is an *inherent* part of the circuit. While
the quality of the primary minus gap is of major importance, running
with the gap will quickly reduce Q to more realistic levels.