"N"-Phase Resistance-Capacitance Oscillators

This paper describes the design of a series of resistance-capacitance tuned oscillators of the polyphase type. A single-mesh phase-shift network is used for coupling the N tubes of the oscillator which are arranged in a feedback ring. Limiting the discussion to oscillators of odd phases, the author has developed design formulas and has analyzed typical circuits. Experimental results are shown to check closely those predicted by theory.