5W Amplifier with LM383 (CB25309E)

This circuit for the car was found in the April 1990 Radio Electronics magazine. The speaker is 4-ohms.

Gated Oscillator (II) (CB105)
The gated oscillator in the figure bellow tums on when a “0" Iogic Ievel is applied to its input....
Water alarm with lock (CB6957E)
Published in an old Popular Electronics, this circuit makes use of components that are still...
Digital Motor Control (CB25630E)
This circuit uses a switch to select the direction of rotation of a DC motor. It was found in the...