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RE: [TCML] Rotary Spark Gap and Safety Gap Behaving Weirdly [VIDEO]



You're geting resonant rise, which is good if the transformer is robust
enough, but not so adviseable on an NST which can be fragile. But
before you go any further as Sig says, you must have a dummy load in place,
only then can you see the true picture. I made the same mistake myself once
:-)
Most use Halogen lamps I beleive, or a sheet of steel suspended above the
primary will work - gets hot though.

Regards
Phil Tuck

www.hvtesla.com

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Brandon Hendershot
Sent: 12 April 2013 23:42
To: Tesla Coil Mailing List
Subject: [TCML] Rotary Spark Gap and Safety Gap Behaving Weirdly [VIDEO]

Hi All,

Decided to give my SRSG a spin with just the transformer hooked up, and
although it didn't explode catastrophically, it didn't play nicely with the
others. I took a video and put it up here:
youtube.com/watch?v=lBi0Rl9jLuU<http://www.youtube.com/watch?v=lBi0Rl9jLuU>
MAKE
SURE annotations are ON (Left-most icon in the group of icons at bottom
right of the video player, looks like a speech bubble (On by default).).

I'll summarize the issue here for archival purposes should the video ever
disappear. I've made sure to set the safety gap properly without the rsg
connected. The safety gap will not fire with the variac turned up to max
voltage, but as soon as the RSG is engaged, the safety gap will fire
immediately. After turning the variac down and extenguishing the arc, it
will reignite when re-approaching max (130-140V) voltage. Again, the safety
gap will NOT fire even at max voltage when the rsg is turned off.

Thoughts, solutions, and further test procedures welcome.

Thanks,
Brandon H.
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