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Re: 3600watts 6in Tc first light

Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>

Hi Nolan,

Very impressive results ;^) Looks like you're really cramped
for space running that thing in your basement ;-o Are you having
any problems with the sensitive electronics in the house above
being adversely affected by its operation? I noticed that you're
just using the wooden frame boards as the main insulator supports
for the SRSG stationary electrodes. You must reside in a relatively
dry climate to be able to get away with this. I reside in Memphis
which usually has very humid conditions, especially in the summer,
and wood as an insulator for the HV oscillatory currents of the pri-
mary circuit has always ultiamtely failed for me. Is that just plain
steel bolts that you're using for the SRSG electrodes? You may
want to try using threaded brass rods of the same demensions if you
don't wish to or are unable to afford to upgrade to tungsten or tung-
sten carbide electrodes. The steel is a poor conductor of RF cur-
rents and will quickly corrode from the heat and resultant nitric
oxides generated by the spark. I've used brass bolts for a pig
powered coil's RSG before I was able to obtain tungsten. Although
there is some electrode erosion with brass just from the intense heat of
the spark, brass does not corrode much at all and is a much better
conductor of the oscillatory RF currents than ferrous metal(s). You
may even notice an INCREASE over your already impressive per-
formance just by doing this.

It also looks like you're using polycarbonate (lexan) for your rotary
disc. At < 5 kVA, you can probably get away with that. Builders
of the really big pole pig powered coils usually opt for a fiber glass
composite like electrical grade sheet fiberglass or G-10 for the rotary
disc since this material is more resistant to heat. I originally used lexan
with my original rotary gap for my first piggie powered coil and thankfully
had no flying electrode ejection. However, if lexan gets too hot, it will
soften and electrode ejection could occur.

Overall though, your coil is quite impressive. Keep up the good work!
You can check out my latest coil project at:

http://dawntreader.net/hvgroup/david/gm.html

You can bookmark it and check back periodically as I will be trying
to update the page with more info and better pics in the near future.

Take care,
David Rieben

PS - LOL -You gotta love the 5 lb concrete weight disc for the "wheels"
of the SRSG box  :o)))

----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, August 31, 2005 12:48 PM
Subject: 3600watts 6in Tc first light


Original poster: "tmoore" <tmoorezz@xxxxxxxxxxxx>

Well its been a good long while since I posted anything on the list, in part cause kinda lost interest in TCs, but not any more, now that I have seen my 6in tc kickin out around 6 foot streamers at 3600watts it is simply amazing! I have posted some pictures at http://www.hot-streamer.com/nolan/Sixintc/ of first light and the other components.

I depoted a 15/60 France and left a few shunts in so it produces 15kv at 0.185ma 2700wats,and 2 15/30's total power is 3600watts. i used 400uf to 500uf powerfactor correction caps.

the srsg is a modified 1/2hp GE motor 3600rpm to be synchronous at 480bps with 2 stationary electrodes and 8 on the disk there just 1/4in tick threaded rods and don't show hardly and ware. I wana remove four of the rotating rods bring it to 240bps butt ill have to run it outside instead of my basement.

my secondary is 6.625inod by 32in winding  length with 21awg for 1000 turns.

My cap is two 35kv 30nf Maxwell's for 60nf total.

the toriod is 18.5in diameter and 6.25in high, I was going to use my25in by 6.25in but there would be no room. the ceiling and vent ducting are 48in away and the crutches are 62in away, I get some power arcs to them. most all pictures were 1 seconded exposes with an iso of 200, the color speckled ones are 2 seconds with an iso of 400. Note the florescent light in the background are never turned on while taking a picture the tc is energizing them. now that I have some new stuff to post on my website I will up date some time soon.

o ye I almost for got I have some pics of my 4in coil running and ill be posting thos too at http://www.hot-streamer.com/nolan/fourintc/ , note I was getting a few ground strikes I haven't which is 40 inches to the ground and I had a strike to the bigger 25in by 6.25in toroid which is exactly 5feet away not to shabby for a 22in long secondary.

peace
Nolan Moore