(under the class definition) Subject matter wherein some structure or structures of the active element, such as the space discharge electrodes or the internal leads associated therewith, have an appreciable inductive reactance which reactance is effectively included as part of the frequency determining network of the oscillator.
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79+, for oscillators of the beam tube type wherein the frequency determining network is structurally a part of the beam tube.
86+, for magnetic field controlled space discharge device oscillators wherein the resonator is a structural part of the device (e.g., magnetron type with rising-sun anode blocks).