RE: [TCML] Not an Oudin coil (was: Re: Single ear piglet)

["Jim Mora" <wavetuner@xxxxxxxxx>]

Hi Aaron,

My sentiments as well; however, I am making my next coil to that spec as
many do including many pros. Merely getting hit by a power arc streamer at
10KVA power level would likely kill, or maim badly, yes? I suppose you could
look at this as assuming the gun is always loaded and therefore must be
handled under that assumption.

Jim Mora

Post Script:

Even Adam's most excellent front end protection would be null and void if he
ever connected to a "backend" streamer.

Myself, I want to be a long way away from the top terminal and have multiple
safeties at my control cabinet such as an obvious breaker box, x-ray
connectors, mushroom switches, a keyswitch with removeable key, and a
deadman switch monofilament line clip lead in the "A" relay series circuit-
both will travel out with me.

Perhaps this makes being in a Faraday cage safer? Just curious... Also
perhaps at these power levels a strike rail is a false sense of security
after watching Dr. Resonance's coil running at about 240V/>100amps with a
"smallish" topload (big bruiser was ill that year). I don't know if he RF
grounds the inner primary; but I think he does as I was there when it was
crimped. It was quite a show for awhile anyway! Then again his oxy/hydrogen
cannon was no small toy either ;-^ Non of this is recommended to our newer
viewers!!! ***DO NOT*** start out with a pole pig! Getting bit by an OBIT is
a painful but mostly a survivable experience. The big iron leaves few cooked
survivors, sans limbs, and they seem to be easier to obtain these days in
the states anyway. End rant.

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of J. Aaron Holmes
Sent: Friday, April 24, 2009 11:25 AM
To: Tesla Coil Mailing List
Subject: [TCML] Not an Oudin coil (was: Re: Single ear piglet)


An Oudin coil is an autotransformer, yes?  Definitely not what you're doing,
David.  An Oudin coil with a one-eared pole pig for a primary source would
certainly be far, far greater *guaranteed* danger than a similar Tesla coil
with a primary/secondary arrangement.  An Oudin coil with a one-eared pig
means that you're standing on one leg of the primary HV and the other is
wired directly to the streamer that's about to hit you.  With a Tesla coil,
the concern for 50/60Hz on the streamers is generally tied to the concern
that a coincidental primary-to-secondary flashover occurs, setting up a
transient Oudin-coil-like scenario.  Still not something to scoff at, but
you do have to get [un]lucky.

Regards,
Aaron, N7OE

--- On Thu, 4/23/09, David Rieben <drieben@xxxxxxxxxxx> wrote:

> From: David Rieben <drieben@xxxxxxxxxxx>
> Subject: Re: [TCML] Single ear piglet
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Date: Thursday, April 23, 2009, 6:38 AM
> Hi Jim,
> 
> 
> Hmm, I'm not sure if I understand what you're asking?
> First of all, yes, I suppose I am running it in the
> classic
> Oudin coil setup, as you describe. I think one of the
> big "red flags" with this was that if one were to come in
> contact with one of the streamers, it was tied into the
> 60 hz primary currents and could prove a lethal shock
> hazard. However, I think it's prertty well universally
> undesrstood amongst the list membership by now that
> you don't let 13 foot arcs hit your body under any cir-
> cumstances, anyway. ;^)
> 

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