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Parametric Exitation of Electric Oscillations - 1934 Russian Article Translated
This is a translation of an article I found on the American Marconi Foundation website ( Home :: AMERICAN MARCONI FOUNDATION ). The site was basically set up to support Eric Dollard's (and others) research into Telluric waves for earthquake prediction. In the downloads section is the untranslated article as well as other interesting pieces.
https://rapidshare.com/files/4282179...n_English_.doc
ON ELECTRIC OSCILLATION EXCITATION BY MEANS OF PARAMETRIC CHANGE
by L. Mandelstam and N. Papalexi
In this work the theory of electric oscillation excitation in oscillatory system by means of periodic parameter change with no applied electromotive forces is given. This theory, which is based on general methods of differential equation periodic solution stated by Henri Poincare, will be applied to the special cases of parameter change. These are the cases of oscillation excitation (excitation conditions, stationary amplitude, etc.) that can be observed both with a sinusoidal self-induction or capacity change in a nonlinear oscillatory loop (that contains an iron choke) or in a sinusoidal self-induction change in series-connected vacuum valves. The experimental part contains the description of the attempts to excite oscillations by means of periodic change in self-induction or capacity in accordance with the theory.
Enjoy
https://rapidshare.com/files/4282179...n_English_.doc
ON ELECTRIC OSCILLATION EXCITATION BY MEANS OF PARAMETRIC CHANGE
by L. Mandelstam and N. Papalexi
In this work the theory of electric oscillation excitation in oscillatory system by means of periodic parameter change with no applied electromotive forces is given. This theory, which is based on general methods of differential equation periodic solution stated by Henri Poincare, will be applied to the special cases of parameter change. These are the cases of oscillation excitation (excitation conditions, stationary amplitude, etc.) that can be observed both with a sinusoidal self-induction or capacity change in a nonlinear oscillatory loop (that contains an iron choke) or in a sinusoidal self-induction change in series-connected vacuum valves. The experimental part contains the description of the attempts to excite oscillations by means of periodic change in self-induction or capacity in accordance with the theory.
Enjoy
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