Re: Tuning Isis and Osiris

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Parpp807-at-aol-dot-com>

In a message dated 1/13/02 8:51:08 AM Central Standard Time, tesla-at-pupman-dot-com 
writes:

Hi Nick,

Exactly as you describe. I noticed when I first fired up, attaching the 
ground to the base
of one resonator almost totally killed the output of that resonator. And this 
is with the original tune points from the 48 incher producing a 60 inch 
spark. This suggested
a sort of tuning effect for the electrical midpoint. 

The twins are still being retuned but when I reconnect them they will be in a 
different location to give a little more horizontal free space. Nothing can 
be done about 
the overhead wiring, conduits, etc. But I am going to run an 8 ft piece of 
bare #12 to tie 
the bases together and attach the power line ground lead with an alligator 
clip.!!!!!!
The #12 wire will be insulated from the floor on Delrin support rods.
So I will be "tuning" the electrical midpoint to try to compensate for the 
anistropic properties of the neighboring space in that particular location.   
 

All very fantastic witchcraft. Learning in progress.

Cheers,
Ralph Zekelman


> I too have observed this.  It is only occasional, and easily solved
>  by connecting the midpoint to a reference ground.  My explanation
>  is that if other factors (proximity capacitance effects, mainly) alter
>  the capacitance of one of the two toroids significantly then this 'pushes'
>  the 0 Volt node away from the ground point.  This could be tuned out
>  of the system by adding capacitance to the other terminal, but for
>  reasons of practicality connecting up a reference ground is what we
>  tend to do.  It doesn't have to be a 'heavy' ground, a structural girder
>  or even water pipe will do.