RE: [TCML] x-ray transformer for Tesla supply, chickens

["Jim Mora" <jmora@xxxxxxxxxxx>]

DC,

I'm not sure what a chicken gun is, but I know what happened to a several
neighborhood's PC's in Santa Barbara when some idiot shot a real gun into a
"Pole Chicken" on New Year's eve to watch the sparks.

Jim

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of D.C. Cox
Sent: Thursday, December 06, 2007 5:44 PM
To: Tesla Coil Mailing List
Subject: Re: [TCML] x-ray transformer for Tesla supply


Hopefully the topic will be short and quick and Chip will allow this 
non-Tesla question by:

what on earth is a "chicken gun" and why would you "shoot chickens"?

Dr. Resonance
Resonance Research Corp.
www.resonanceresearch.com


----- Original Message ----- 
From: "Rich & DJ" <rdj@xxxxxxxxxxxx>
To: "'Tesla Coil Mailing List'" <tesla@xxxxxxxxxx>
Sent: Thursday, December 06, 2007 5:36 PM
Subject: RE: [TCML] x-ray transformer for Tesla supply


> David
>
> Please let me set it straight, I do not have a chamber like that. The
> chambers were in the lab complex where I worked. The 30 foot one was used 
> to
> do testing on the Mercury and Gemini spacecraft. The large chamber was in
> mothballs for several years then reopened. The 18 foot chamber has been in
> and out of use for years. We had several smaller Hi-Vac ones (some 3' and
> 5') used for laser communication testing, also 10 and 15 chambers used for
> high altitude and low temp testing. We had all that and one chicken gun. 
> We
> shot chickens, not "at" chickens , they were the projectile.  This is
> getting off subject but I had fun.
>
> Rich , from the middle of Missouri
>
> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
> Of David Rieben
> Sent: Thursday, December 06, 2007 2:59 PM
> To: Tesla Coil Mailing List
> Cc: David Rieben
> Subject: Re: [TCML] x-ray transformer for Tesla supply
>
> Hi Rich,
>
> Am I reading that right? 18' and 30' (as in FEET, not INCHES)
> diameter vacuum chamber? You're certainly correct in that not
> everyone can claim ownership of one of those! :^0
>
> David
>
>
> ----- Original Message ----- 
> From: "Rich & DJ" <rdj@xxxxxxxxxxxx>
> To: "'Tesla Coil Mailing List'" <tesla@xxxxxxxxxx>
> Sent: Thursday, December 06, 2007 1:51 PM
> Subject: RE: [TCML] x-ray transformer for Tesla supply
>
>
>>I agree with David and DC. When I was still working they were testing a
>> 100Kv system and they had to run it in a 18' dia vacuum chamber. Not 
>> every
>> one has one of these. It was being moved to a 30' chamber when I retired.
>> Rich
>>
>> -----Original Message-----
>> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On 
>> Behalf
>> Of David Rieben
>> Sent: Thursday, December 06, 2007 8:59 AM
>> To: Tesla Coil Mailing List
>> Cc: David Rieben
>> Subject: Re: [TCML] x-ray transformer for Tesla supply
>>
>> Hi DC, all,
>>
>> Yes, the consensus of the list responses to this question only verifies
>> my own thoughts on this matter. >100 kV voltages  (or >30 kV volt-
>> ages, for that matter) would just be too unwieldy for practical use in
>> Tesla primary circuits. I think list member Scot 'Bunnykiller' Dingman
>> has documented the significant voltage standoff difficulties associated
>> just from seriesing (2) 14,400 volt pigs, overdriven with up to 280 volts
>> from a variac, given 'max out' primary circuit voltages of around 33 kV.
>>
>> David Rieben
>>
>>
>>
>>
>> ----- Original Message ----- 
>> From: "resonance" <resonance@xxxxxxxxxxxx>
>> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
>> Sent: Wednesday, December 05, 2007 10:26 AM
>> Subject: Re: [TCML] x-ray transformer for Tesla supply
>>
>>
>>>
>>>
>>>
>>> For reasons previously discussed on the list this is a bad idea.
>>>
>>> The HV requires extra insulation, is problematic, and simple not worth
>>> the
>>
>>> effort.  You can achieve sparks up to 80 feet long with a standard 14.4
>>> kV
>>
>>> pole xmfr so why go to higher voltage when it's completely unneccesary?
>>>
>>> The caps require lots of current for rapid recharge and an x-ray xmfr
>>> will
>>
>>> not put out 1 to 1.5 Amperes as a pole xmfr can easily do.  Plus, a pole
>>> xmfr when recased weighs only approx 125 lbs --- compare to a large xray
>>> xmfr at 350 lbs.
>>>
>>> Dr. Resonance
>>>
>>> Resonance Research Corp.
>>> www.resonanceresearch.com
>>>
>>>
>>> ----- Original Message ----- 
>>> From: "David Rieben" <drieben@xxxxxxxxxxx>
>>> To: <tesla@xxxxxxxxxx>
>>> Sent: Wednesday, December 05, 2007 8:18 AM
>>> Subject: [TCML] x-ray transformer for Tesla supply
>>>
>>>
>>>> Hi all,
>>>>
>>>> Has anyone on the list successfully used an x-ray transformer
>>>> anywhere near its rated output voltage to power a Tesla coil?
>>>> (operating at less than 30% of its rated output voltage doesn't
>>>> count :^). I have one friend that seems convinced that you could
>>>> make a killer coil by running the Tesla primary circuit with over
>>>> 100 kV but I've always been under the impression that the in-
>>>> creased corona losses coupled with the required dramatic increase
>>>> in voltage standoff would make such a circuit impractical. Also,
>>>> the primary capacitor(s) would have to be able to withstand several
>>>> 100 kVs although it's rated capacitance could be relatively small.
>>>> I'm certainly not trying to demonize x-ray trannies (the old style
>>>> 60 hz ones, that is) as they absolutely ROCK! With my 150 kVp,
>>>> 600 mA rated 500-600 lb unit, I can self start arcs at 12" with <
>>>> 90% of its rated input voltage and 'pull out' 40" power arcs while
>>>> pulling over 120 amps through my Green Monster coil's variac and
>>>> ballast for 10 minutes at a time and the outer tank surface never
>>>> gets the slightest bit warm! Whooppee!! However, I do not believe
>>>> these transformers are practical as Tesla coil power sources. Any-
>>>> one have any other viewpoints, opposing or supporting? ;^)
>>>>
>>>> David Rieben
>>>> _______________________________________________
>>>> Tesla mailing list
>>>> Tesla@xxxxxxxxxxxxxx
>>>> http://www.pupman.com/mailman/listinfo/tesla
>>>>
>>>
>>>
>>> _______________________________________________
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>>> http://www.pupman.com/mailman/listinfo/tesla
>>>
>>
>>
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>
>
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