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Re: Am I courting disaster?
Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com>
You need some large 200 Watt, 250 Ohm resistors, 5 in parallel for 50 Ohm,
to spoil the Q factor. We also use a simple 2 inch dia x 16 inch long
inductor wound with #14 AWG wire.
Also a simple safety spark gap.
All this will protect the xmfr from damage.
Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo WI 53913
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
Sent: Thursday, January 29, 2004 12:24 AM
Subject: Am I courting disaster?
> Original poster: Dave Leddon <dave-at-leddon-dot-com>
> I recently re-cased a 10 KVA pig in acrylic to reduce the size and weight
> of the thing. See picture:
> The finished size ended up 11 x 11 x 14 inches with the volume of oil
> dropping from 16 gallons to 2 and the weight from 300 to 170 lbs. In the
> process I reduced the external connections to the bare minimum, 240 volts
> in and 14400 volts out and floated everything with respect to ground.
> means that the coil tank circuit also floats which has a certain
> appeal. The performance of the coil is the same as it was when one side
> the supply voltage was tied to the RF ground although the primary tuning
> does seem to be a bit sharper. My only concern about this configuration
> what happens to the energy following a strike to the primary? It would
> appear that the only path to ground would be back through the transformer
> to utility power. Do I need to install a lightning arrester between one
> side of the tank circuit to the RF ground?