From: "Tesla list" <tesla@xxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: tesla coil does not work...
Date: Thu, 12 Jan 2006 12:48:56 -0700
Original poster: "Qndre Qndre" <qndre_encrypt@xxxxxxxxxxx>
Hey Dr.,
sounds like he is using an OBIT since his
"supply" has 10 kV @ 23 mA which sounds very
much like an OBIT ;-) . OBITs are usually
midpoint-grounded so he will have to hook the
center-tap of the transformer's secondary (which
is usually connected to the iron core) to RF
ground so he gets two "hot" wires out of his
transformer having 5 kV each in reference to
ground, being 180° out of phase. Grounding the
core (and therefore the center tap) and one
bushing will result in shorting out the transformer's secondary.
Regards, Q.
----Original Message Follows----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: tesla coil does not work...
Date: Wed, 11 Jan 2006 18:35:12 -0700
Original poster: "D.C. Cox" <resonance@xxxxxxxxxx>
Do you have any connections to the center
bushing on the low voltage side of the
xmfr? Only the two outer bushing are
used. Ground is connected to case, and one of
the HV bushings should also be connected to this case ground.
Dr. Resonance
Original poster: "Langer Giv'r" <transworldsnowboarding19@xxxxxxxxxxx>
When i turn it on, the spark gap fires on a
very short distance, and i smell something
burning, but I dont think its my transformer
because it still works... I am seeing
absolutely NOTHING on my secondary, so i think
my capacitors might have something wrong with
them. Help would be increadible, thanks!
Seems as something wrong with the capacitors. Can you measure the
capacitance? Are you not using too small resistors across the
capacitors? The gap fires if just placed across the transformer?
Are the support structures of the assembly made with materials
with enough insulation?
Antonio Carlos M. de Queiroz