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The apparatus of claim 1 wherein the drive means includes a magnetic coil disposed adjacent to one end of the balanced beam vibratory element so as to cause a deflection of the element upon activation of the coil.

Consider the electrostatic deflection cathode ray tube.

It was recently shown that suitable overshoot compensation so-called or achieves about 3.

Yet, the operation of a balanced modulator goes slightly deeper than generating and detecting signals.

The single balanced beam element has an electrode, operatively associated therewith, suitable for sensing a capacitive coupling relationship with an electrostatic field, whereby the vibration of the single balanced beam vibratory element results in the modulation of the capacitive coupling relationship between the electrode and the electrostatic field.

between the US and were intercepted and "decrypted" by the Germans; they included some early conversations between and.

An object of the present invention is to provide a single balanced beam electrode modulator capable of modulating the field to which an electrostatic electrode is coupled.

Thus DSB output is produced by FET balanced modulator.

The apparatus of claim 1 wherein the resilient support means supports the balanced beam vibratory element at a position in proximity to a vibrational node present at substantially about the midpoint of the element.