Hey men Spider looking good!!. 

But keep in mind these big caps need much more time to charge up.

Are those Neon sign transformers?

Marco.

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  SIMPLE MAKE  PULSE  CIRCUITS  ABOUT  <15Khz   WHIT SOME  DRIVER TO  SOME  SMALL  FERTH  TR.   AND THEN INCREASE  THE  V   TO  LETS SAY   1200V  AND THEN PUT  ORGINALL TV CASCADE OLD   AND THEN YOU HAVE  10000  OR MORE HV  OF THE CASCADE
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Marco

Nice post on the Quad ESL's. I was given a pair to repair back in the early 70's. Brings back memories.
For those interested in rolling your own ESL's try "Electrostatic Loudspeaker Design and Construction by Ronald Wagner. It gets into the delay line theory etc. much of which is also in the Walker patents.

The "Audio Amateur" did a nice construction article on a set of ESL's with direct drive from push pull high voltage transmitting tubes, triodes if I remember correctly.

Gentlemen be careful discharging large capacitor banks without ear protection. The exceedingly steep audio wavefronts can cause permanent ear damage. These discharges are used to shape metal when a transmitting medium for the wavefront such as water is used. I have permanent damage to one ear from experiments back in the 60's with discharge from capacitor banks.

Additionally the sound is extremely painful to cats, dogs and other animals and may cause trauma. Beware.

One must realize that back in the 1870s no one new what light was. Today we call it electromagnetic (EM) radiation. This was also before the discovery of the X-rays. Today we know that there is a much broader EM spectrum but all of that was discovered by the pioneers in electricity and physics of the 1800s and expanded in the 1900s as better tools became available.

Here is the original radiant energy detector.
http://en.wikipedia.org/wiki/Crookes_radiometer

And some other info.
http://www.magnet.fsu.edu/education/tutorials/pioneers/crookes.html

Sir William Crookes was a mentor of Tesla's. So it isn't "Tesla's radiant energy" at all. Crookes used the term first. It is a generic term. Anything that radiates energy is a radiant energy source.

 “Tesla’s latest Roentgen Ray Investigations”, Electrical Review, New York 28 No.17, April 22. 1896)
“…streams resembling the cathodic must be emitted by the sun and probably also by other sources of radiant energy, such as an arc light or Bunsen burner.”

Regarding the "stinging ray experiments" consider what happened to the atoms and particles of the conductor that was vaporized. They went somewhere and they weren't converted to pure energy because that would have been a nuclear explosion. But they definitely radiated and they carried a charge as witnessed by their charging of objects in the lab, i.e. radiation.

One must realize that back in the 1870s no one new what light was. Today we call it electromagnetic (EM) radiation. This was also before the discovery of the X-rays. Today we know that there is a much broader EM spectrum but all of that was discovered by the pioneers in electricity and physics of the 1800s and expanded in the 1900s as better tools became available.

Here is the original radiant energy detector.
http://en.wikipedia.org/wiki/Crookes_radiometer

And some other info.
http://www.magnet.fsu.edu/education/tutorials/pioneers/crookes.html

Sir William Crookes was a mentor of Tesla's. So it isn't "Tesla's radiant energy" at all. Crookes used the term first. It is a generic term. Anything that radiates energy is a radiant energy source.

 “Tesla’s latest Roentgen Ray Investigations”, Electrical Review, New York 28 No.17, April 22. 1896)
“…streams resembling the cathodic must be emitted by the sun and probably also by other sources of radiant energy, such as an arc light or Bunsen burner.”

Regarding the "stinging ray experiments" consider what happened to the atoms and particles of the conductor that was vaporized. They went somewhere and they weren't converted to pure energy because that would have been a nuclear explosion. But they definitely radiated and they carried a charge as witnessed by their charging of objects in the lab, i.e. radiation.

I always looked on it as an electromagnetic pulse radiation.   The copper vaporized into a plasma causing a dead short and a huge current flow for a brief interval until the generator and distribution system capacity went to it's knees.  The near field magnetic wave quite intense.