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

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

Original poster: sebastian gaeta <sgtporky-at-prodigy-dot-net> 

Hi Dan,

This is just a guess, but you may have to design something where the 
impedance of the primay would have to match the output impedance of the H 
bridge, then you would feed the primary with balanced line which has an 
impedance that would again be the same value. Balanced line is also known 
as ladder line, you make it with insulating spacers, and keep the distance 
between the two wires the same all throughout. That's how Hams transmit 
power to their antennas without loosing it. Don't ask me how to do that 
though. If I knew that I would be making more money than I am. Maybe you 
might need to have a trans match at the H bridge or something. I am just 
throwing an idea at you, and I really don't know what I am talking about, 
so take it lightly. If I am on the right track though, maybe someone else 
might know how to work it into a useable plan!

Sue

Tesla list <tesla-at-pupman-dot-com> wrote:
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