High Power Solid State Tesla Coil - Successful Test

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Daniel McCauley by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com>

Just finished all my "resisitive load" tests on my new high power solid
state tesla coil driver and decided to go with a quick first time test with
the primary connected.

Damn, didn't have enough wire, but managed to get 10 turns of 10 AWG wire on
the primary.

Powered up the unit with 120VAC, half-rectified into the unit and nothing!
Gotta tune it.  Turned the frequency adjust pot a
few turns and then the thing came to life.  Really loud and nice white arcs
approximately 15 inches long.  Not bad seeing the thing isn't tuned too well
and haven't really played with the primary coupling or # turns etc...  Ran
for 15 minutes (man lots of ozone!!!), and the FETs are actually COOL to the
touch!!!!  Excellent.

Now, put up my 120-240VAC transformer in the circuit.  Now i'm running
240VAC, half-rectified into the full bridge circuit.
WOW!!!!!  The thing comes up and is super loud for a solid state coil.  Fat,
white arcs with a low frequency cackling hum almost 30 INCHES LONG!!!!!!
Look out conventional coils.  Ran again for 15 minutes (boy its getting hard
to breath down here!) and the heatsinks are only slightly warm.  Well,
tomorrow, we'll put the variac in the circuit and work up to 480 volts
input, half-rectified.   Wish me luck.

The most recent pictures and specifications of this new coil are at the
following link:

http://www.spacecatlighting-dot-com/teslacoil2.htm

Dan