Figure 3. New oscillator circuits realized by using NEs (15) to (18)

From

State-variable Synthesis of Electronically-Controllable Sinusoidal Oscillators

Manoj Kumar Jain, V. K. Singh, Raj Senani

American Journal of Electrical and Electronic Engineering. 2020, 8(1), 11-20 doi:10.12691/ajeee-8-1-2