Re: The 64k$ Question
In a message dated 96-06-29 00:36:30 EDT, you write:
>>Can you send me a diagram with construction details for your rotary gap?
>>I am building a large tesla coil (2kva) and have heard so much about
>>these rotary gaps but have not been able to obtain good construction
>You can find construction details at:
The above is for a static cylindrical gap. I built my rotary using a 1/2
h.p. series wound motor. The motor shaft is treaded and the 3/8" thick lexan
(polycarbonate) wheel is bolted directly on the shaft. The wheel is about
10" in dia. In about 1/2" from the outside edge I drilled 1/4" holes for 8
electrodes. They are 1/4" stainless steel acorn nuts mounted on each side
with a 1/4" shaft. The stationary electrodes are tungsten 3/16" dia
purchased from a welding store - they are tig welding electrodes. They are
mounted in large copper blocks for heat sinking and they are adjustable. The
motor is 10,000 rpm and I use two variacs in series to conrtol the speed.
One is set to about 35% and left there to control maximum speed and the
other is used to slowly run the speed up.