Low frequency sine wave generator (CB24453E)

This circuit is based on operational ones found in documentation from the 90s. The frequency with the indicated values is around 600 Hz.

Switching Power Supplies Tests Resistive Load (CB18730E)
This resistive load circuit for source testing was found in a 1991 publication. Power transistors must be...
7 W amplifier (CB8946E)
No information is given about the transformers in this circuit suggested by Motorola in a 1968...
LM381 Low Distortion Amplifier (CB25274E)
This circuit was obtained from the February 1990 issue of Radio Electronics magazine. The circuit...