A high stability integratable resistance-capacitance oscillator is disclosed which is capable of operating at a stable frequency regardless of changes in ambient temperature or applied voltages. The oscillator uses a temperature compensating impedance and semiconductor junction to compensate for temperature dependent variations in active elements of the oscillator. Constant current bias sources and voltage clamping circuits insure oscillations having predetermined amplitude ranges despite changes in applied voltages. Active transistors in the oscillator are maintained in their linear range by the use of antisaturation transistors connected between their base and collector electrodes.