A High Q Inductive Transistor Circuit and a Tuned Oscillator for Microminiature Applications†

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Abstract
The paper deals with a simple transistor circuit whose input impedance is equivalent to that of an inductance L in series with a resistance R, both L and R being frequency dependent. B can be adjusted to have a positive, zero or a negative value so that the circuit can net as a high Q inductor, or in conjunction with a suitable capacitor, as a tuned oscillator. The circuit may be readily integrated into a single semiconductor block and, as such, it will be useful in the microminiature electronics field where the realization of a high Q inductor has long been a problem.

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