RE: SSTC Driver Output Cable Lengths (Distance from Driver to Resonator)

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

Original poster: "Steven Ward" <srward16-at-hotmail-dot-com> 

Dan,

With my twin SSTC setups i run about 2-3' of wire to each of the primary 
coils.  I do notice that these primaries needed LESS primary turns to equal 
the performance of my compact setups (using the same secondary and driver 
etc).  Also, the twin setup with the longer wiring tends to heat up more 
than the setups where the primary only has maybe 6" of total wiring that is 
not coupled to the resonator.  Seems that the shortest wiring is best.  i 
might eventually look into a way of making my twin setup use the least 
possible amount of extra wire length.  also, the wire going to the 
primaries is tightly bound in a bundle (to try and cancel out the leakage L).

5-10' seems like an aweful lot...

Steve


>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: SSTC Driver Output Cable Lengths (Distance from Driver to
>Resonator)
>Date: Tue, 27 Jan 2004 16:54:02 -0700
>
>Original poster: dhmccauley-at-spacecatlighting-dot-com
>
>I'm thinking of building a SSTC coil inside a rackmount unit enclosure. The
>output of this SSTC driver located inside the rackmount enclosure will then
>travel maybe up to
>5-10 foot length of cable to the primary coil of the tesla resonator.
>
>Just wondering if anyone has already done this and what their experiences
>were.  The maximum output frequency will be about 150kHz for this design and
>about 3000V peak-to-peak
>maximum output voltage.  My main concern is the parasitics (primarily
>inductance) of this long cable length at that frequency.
>
>However, with PSPICE simulations with accurately modeled wire models
>(assuming twisted output wiring), the wire inductance doesn't seem to bother
>the output signal overall.
>
>But as we all know, simulations are one thing, and real experience is
>another.
>
>So if you have any experience in doing this, please let me know.
>
>Thanks
>
>Dan