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Re: [TCML] Chicago Museum Tesla

There are real treasures in the Museum Of Science and Industry, the original stage Tesla Coils of Thomas Stanley Curtis.  One, the Oudin coil, is on display...  some excerpts from emails below...(the bipolar version is in their vaults)...Bill Wysock and possibly kVa Effects were there, but I am not sure what they installed...Bill was pissed that the Curtis coil surfaced after he had already flown back to LA!

Hi Jeff,

Thanks so much for getting back to me! This is possibly very good news. I just got back up from measuring and photographing some of the details on the coil. They are below. I will send the images later, as I cannot find the cable to my camera at the moment.

OK, here are the measurements I took starting at the top:

Discharge Ball - 3.5" diameter
Secondary Coil - 21" diameter
Primary Coil - Inside: 21"; Outside: 27.5"

It seems that it might match the measurements you expected. Again, I will send you more images as soon as I can find the cable.



Charles McGhee Hassrick
Senior Exhibit Developer

Museum of Science and Industry
57th and Lake Shore Drive
Chicago, IL 60637

From: Jeff Behary <jeff_behary@xxxxxxxxxxx>
Date: Tue, 16 Feb 2010 20:25:32 -0600
To: Charles McGhee Hassrick <Charles.McGheeHassrick@xxxxxxxxxxxxxx>
Subject: RE: Tesla/Oudin Coil...

You have made my day.  This coil looks identical to the great stage coil built by high frequency pioneer Thomas Stanley Curtis.  Can you tell me what the diameter of the coil is, if it is around 21" I think I might need CPR!


Curtis has been an inspiration of mine since the beginning.  I have since been contacted by his son, who is over 85 years of age.
I built a reproduction of a small Curtis coil that was featured (with me) on the History Channel's Modern Marvels.

I have a lot of information, photos, etc. I can offer for your display.  It would an honour to have them shown next to that beauty.  Now:  If you want to restore that to working order, as a large floor model Tesla Coil, it is possible 100%.  It would be a great accompanyment to your future display.  I would do this virtually for free on behalf of the memory of TSC - materials cost only.

Sent via the Samsung GALAXY S® 5, an AT&T 4G LTE smartphone
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