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October 19, 2003: NST filter/safety gap installed and low-amperage
wiring finished. Next is high-amp wiring for the tank circuit.
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October 12, 2003: Finally finished
the NST Protection Filter/Safety Gap, of "Terry Filter" design. Here's
an overhead view. It's standoff overkill
with the vintage Johnsons and all; they're just for looks. Next: low-voltage
assembly, then build the primary (changing to a pancake design) and finish
the tank circuit.
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August, 2002: Second RQ-style cylindrical static spark gap completed.
They're connected in series with a piece of 2" flat copper ground
strap. Next: NST protection.
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July, 2002: Work in progress: the primary coil support is done, just
need to attach the secondary support base and finalize wire routing
before attaching the ¼" copper tube conductor. I'm using four
old Pyrex RF standoff insulators to support the ½" strike rail.
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July, 2002: 6" PVC TCBOR/RQ-style spark gap #1 finished, now
need to make its twin. 6 gaps at 0.028", potted so they should stay
put through many thermal cycles; wooden insulating legs, 2" center
acrylic tube keeps airstream to sides where it's needed for
quenching, instead of wasting it up the middle.
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June, 2002: Brought back this Arrow-H&H switch from Washington.
It's Navy surplus, and doesn't appear to have been used. That's
a little household wall switch next to it for scale. Yes, it
makes a major clunk when switched. Rating: 100A, 125-250-500
V.A.C.
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June, 2002:
The First Tesla Coil has Started! The major parts so far:
- 15,000V, 60mA France NST (Neon Sign Transformer)
[installed on the wood wedding-cake frame]
- .0124uF (ideally 0.01uF), 140KV (overkill!)
noname Maxwell pulse capacitor [sitting on the floor]
- 1.4KVA Powerstat autotransformer
- 226cfm Mechatronics UF15P12 AC tube axial fan
[for quenching the spark gap]
- The beginnings of a TCBOR/RQ-type cylindrical
static spark gap.
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