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On 4/9/15 9:22 AM, Timothy Gilmore wrote:
Jim,
Nice write up and explanation. I read previously that not using a breakout
point of a nail tip, needle, pin (how is the pin attached - from the inside
of the toroid where the flat round end is touching the toroid and pin
breaks through the outside of the toroid to emit sparks?) will cause a 40%
reduction in spark length (vs having a breakout point) by having multiple
sparks randomly around the toroid.
I stick the thumbtack on with tape: shove the pin through the tape's
sticky side and then stick it on the toroid.
It sounds to me that having a breakout point is the way to go for having
the longest spark length then. I will still build a bigger toroid with 8"
aluminum ducting but if you don't need the $20 a roll aluminum tape then a
breakout point should be the answer then.