Re: Attaching Tungsten Electrodes to Rotor etc...

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "D.C. Cox by way of Terry Fritz <twftesla-at-qwest-dot-net>" <DR.RESONANCE-at-next-wave-dot-net>


Don't use a conductive aluminum ring on the outside of the rotor.

Just cut the TIG electrodes to a total length each of 1 inch and fix them
axially through the outer 1/2 inch edge of the rotor disk.  Have a machine
shop do this with a precision reamer.

In any Tesla oscillator primary circuit the old law "current in a series
circuit is the same at any point" holds true.  Why bother using 4 AWG
welding cable (copper) for hooking up all the essential components and then
totally spoil the Q factor with some aluminum in series with this nice low
resistance copper?  Keep it all low loss.

Dr. Resonance



----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, July 19, 2002 10:56 AM
Subject: Attaching Tungsten Electrodes to Rotor etc...


> Original poster: "Mccauley, Daniel H by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>
>
>
>
> I'm building a SRSG using one of D.C. Cox's synch motors.
>
> Just had a few questions:
>
> I'm going to be using a 7" dia., 1/4" thick LE Gastrolite (Phenolic)
> disc for the rotor.
> My questions are as following:
>
> 1.  For the aluminum conductive ring on the outside of the rotor,
> what thickness works best, what aluminum alloy works best, and whats the
> best way to attach this to the rotor.
>
> 2.  I've chosen to use 1/8" thick thoriated tungsten rods which are
> available at McMaster-Carr.  The only thing, is what is the best way to
> attach these to the rotor and to the other stationary electrode support.
I
> know that tungsten is a b**** to machine - should i attempt to use a die
to
> thread these rods and attach via nuts????
>
> Any help appreciated.
>
> I realize i've been asking a lot of questions so far, and I want to
> thank all of you for all your help!!!!!!!
> Much appreciated!!!!
>
> Dan M.
>
>
>
>