This PA or Public Address amplifier with a few watts of power was found in the March 1986 Radio Electronics magazine. It uses two LM380 ICs in bridge mode for higher power.
To use the instrument for AC measurement, the tips are A and B. For CC use tips A or B for...
This power supply was originally designed to power our next circuit (CB18672E) which consists of a...
This circuit was obtained in a 1990 English magazine. The circuit can be assembled with equivalent power...