This amplifier is from Motorola's 1990 Linear Databook. The circuit can be used with operating amplifiers with the same characteristics and the power supply must be symmetrical.
This circuit multiplies a time constant given by the input components. The circuit admits...
This circuit is nothing more than a powerful audio oscillator or buzzer with a power transistor. The...
An way to change the frequency of the previous oscillator (CIR112E) is to add a variable capacitor in the...