Re: "lightning machine" at Chicago's Museum of Science & Industry? (fwd)

["High Voltage list" <hvlist@xxxxxxxxxx>]

Original poster: Steven Roys <sroys@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Thu, 8 Jun 2006 21:26:23 -0600
From: Dr. Resonance <resonance@xxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: "lightning machine" at Chicago's Museum of Science & Industry?
    (fwd)


I've alreay built a few purchased by transformer testing companies.  One was 
400 kV (on our website) and the second was 1,200 kV.  These are deadly 
machines to be around with their huge capacitors.

Dr. Resonance
>
>
> ---------- Forwarded message ----------
> Date: Wed, 7 Jun 2006 21:43:52 -0700
> From: Jim Mora <jmora@xxxxxxxxxxx>
> To: 'High Voltage list' <hvlist@xxxxxxxxxx>
> Subject: RE: "lightning machine" at Chicago's Museum of Science & 
> Industry?
>    (fwd)
>
> Dr. Resonance,
>
> Wow, that would be a sight and a sound to behold. How about building
> something like that in the short way to Wisconsin. That would be a well
> attended Teslathon! Given the number of interested parties in the area,
> would it be affordable to build or feasible... Perhaps little brothers?
>
> Jim Mora
>
> -----Original Message-----
> From: High Voltage list [mailto:hvlist@xxxxxxxxxx]
> Sent: Tuesday, June 06, 2006 6:48 AM
> To: hvlist
> Subject: Re: "lightning machine" at Chicago's Museum of Science & 
> Industry?
> (fwd)
>
> Original poster: Steven Roys <sroys@xxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Mon, 5 Jun 2006 14:20:38 -0600
> From: Dr. Resonance <resonance@xxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Re: "lightning machine" at Chicago's Museum of Science & 
> Industry?
>    (fwd)
>
>
>
> No, two different machines.  The Chitown Marx was only 12 feet tall with 
> 1e6
>
> output.
>
> The large GE machines were each 50 feet tall -- one a plus 5 mev and one 
> at
> minus 5 mev for 10 mev discharge between them --- and they were incredibly
> loud!!  My grandfather actually saw them fire in 1939 --- he said they 
> were
> monsters!!
>
> Dr. Resonance
>
>
>> Date: Fri, 02 Jun 2006 16:37:44 -0400
>> From: David Speck <Dave@xxxxxxxxxxxxxxxx>
>> To: High Voltage list <hvlist@xxxxxxxxxx>
>> Subject: Re: "lightning machine" at Chicago's Museum of Science &
>> Industry?
>>    (fwd)
>>
>> Doc,
>>
>> By any chance was this the machine that had been featured at the GE
>> Pavilion of the 1939 NY World's Fair?  The vintage and capabilities of
>> the machine sound similar to what I've heard about the NYWF display.
>>
>> GE had both a Marx Generator and a multiple megavolt 3 phase flaming arc
>> display at that fair.    The transformers of the continuous display were
>> dispersed, some being used for test stands in Pittsfield, MA.  I never
>> heard what happened to the Marx display.
>>
>> Dave
>>
>> High Voltage list wrote:
>>> Original poster: Steven Roys <sroys@xxxxxxxxxx>
>>>
>>>
>>>
>>> ---------- Forwarded message ----------
>>> Date: Fri, 2 Jun 2006 11:03:35 -0600
>>> From: Dr. Resonance <resonance@xxxxxxxxxx>
>>> To: High Voltage list <hvlist@xxxxxxxxxx>
>>> Subject: Re: "lightning machine" at Chicago's Museum of Science &
>>> Industry?
>>>     (fwd)
>>>
>>>
>>>
>>> It was not a Cockroft-Walton circuit. It was a classic Marx impulse
>>> generator.  I repaired it for them several times.  The original design
>>> used
>>> HV resistors that were too small and they kept frying.  The generator 
>>> was
>>> quickly and quitely removed from service when someone discovered the 
>>> caps
>>> were filled with PCBs.  It was a 1,000,000 Volt Marx generator.
>>>
>>> Dr. Resonance
>>>
>>>
>>>
>>>> Date: Thu, 1 Jun 2006 13:24:14 -0600
>>>> From: Gomez Addams <gomez@xxxxxxxxxxxx>
>>>> To: High Voltage list <hvlist@xxxxxxxxxx>, Tesla list 
>>>> <tesla@xxxxxxxxxx>
>>>> Subject: "lightning machine" at Chicago's Museum of Science & Industry?
>>>>
>>>> This may have been asked on one of these lists before.  I may have
>>>> even asked it myself a few years ago, because it's something I've
>>>> been interested in for a long time, but if I ever did get an answer
>>>> here, I didn't put it where I could find it again.  If I'm repeating
>>>> myself, I apologize for my absent-mindedness.
>>>>
>>>> By the way, this isn't really Tesla coil related, but it's close
>>>> enough it ought to interest many on the TC list, and I figure someone
>>>> else my age or older may know about it.
>>>>
>>>> So: in the 1970s, the Chicago Museum of Science and Industry had
>>>> something which my high school science teacher called a "Lightning
>>>> Machine".  We took a field trip there (from Peoria) but to my dismay,
>>>> they had shut it down only a few months before our visit.  According
>>>> to the guide I talked to, they had found a hole in the ground cable
>>>> which lead down from the second floor and into an elaborate ground
>>>> system in the basement, and for that and other reasons (perhaps it
>>>> had other problems) the powers that be had elected to not resume
>>>> operating it.
>>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
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