I am traveling for the next few weeks. Sorry, I will respond to your questions in a few weeks. The schematics are in my first posting as an attachment.

I used door knob caps that are rated at 40KV and I think that they are .2 nF that should be .002 uF I think. I will confirm that when I get back. You don;t need that exact cap...just use a cap rated for at least that voltage or higher, and don't use an excessively large cap. I lucked out, as they were the only caps that I had that would handle the voltage I needed. Tesla did not use a cap he made one....! look at his figure....they are just two flat plates I estimate about 2 to 3 inches wide by 4 ish inches long spaced apart with isolators maybe about 1/2 inch maybe 2/4 inch make sure it is bigger than the spark gap in total with both caps adding up to a bigger cap then the spark gap...if you do this you better make sure that there is no arching in that air cap or use a insulate like glass or something....or you might not be that comfortable touching the rods and not report the same results I have had. If you use this home made cap you will be able to adjust the gap to get the results you need.

Tesla is very clear in his description of the circuit, and you can find that in inventions, Researches and Writings or Nikola Tesla (page 192,339,and several other places), and also in Nikola Tesla Lectures (Page 81,197) along with many other wrights of Tesla. I found I got the most out of Tesla after reading Cold war Technologies and lost Science (I think you should read them first).

I used a oil furnace ignition coil rated for 10 KV.

I use carbon welding rods for the spark electrodes...I cut, drill and tap them so they screw onto the bolts I use for adjustments...I also use Tungsten rods...when I chose...what ever I have available.

I have allot to talk about when it comes to the different types of sparks that are generated while doing different types of setups...and I find that the most interesting. That will have to wate, till I get back. the sparks vary in color and property so much that I think that this is the most inserting part of this machine. Some sparks are cold, some will light paper easy others will not burn paper at all. Some sparks will make just make the paper disappear like magic. Some don;t heart to touch others bit like a snake....lol..so be careful.

Karl

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