This circuit was found in a National Semiconductor manual from the 1980s. The integrated circuits used are equivalent. Note the need for a symmetrical power supply.
The presented circuit is a sinusoidal oscillator for 1 kHz that makes use of the four amplifiers...
This circuit was found in a 1967 Electronics World. Transistor Q1 can be a TIP321 and Q2 can be a...
Currents up to 1.5 A can be regulated with this circuit. The resistor R that determines the...