Keely
With his Generator, which was invented for the purpose of multiplication of vibrations, he secured higher frequencies by disturbance of equilibrium of mediums of different specific gravities, air as one, water as the other.

In the disintegration of water in his "Liberator" he produced the "etheric order of ozone." This he is said to have used in a "carbon register" to produce a high vibratory circuit that proved sufficient to break up cohesion, which he states is simply molecular magnetism. At that time he used, in molecular dissociation, one tuning fork of 620 per second, setting chords on the first octave, in atomic separation, two forks, one of 620 and one of 630, setting chords on the second octave, and in etheric separation used three forks, one of 620, one of 630 and one of 12,000, setting chords on the third octave. [VIBRATORY MULTIPLICATION]

"When the ether flows from a tube, its negative centre represents molecular subdivision, carrying interstitially (or between its molecules) the lowest order of liberated ozone. This is the first order of ozone and is wonderfully refreshing and vitalizing to those who breathe it. The second order, or atomic separation, releases a much higher grade of ozone; in fact, too pure for inhalation, as it produces insensibility. The third order, or etheric, is the one that has been (though attended with much danger to the operator) utilized by Keely in his carbon register to produce the circuit of high vibration that breaks up the molecular magnetism which is recognized as cohesion." [Keely and His Discoveries, chapter 3]