The circuit presented is from the Motorola Linear Databook of 1990. The integrated circuit is a transconductance operating and the power supply need not be symmetrical.
This circuit was suggested by Signetics in 1980s documentation. The circuit makes use of the...
This circuit produces low frequency sinusoidal signals. The circuit is a phase shift oscillator...
This variation of the previous circuit produces a pulsating sound when the sensor is activated. The...