This circuit was found in the July 1990 Radio Electronics magazine. It is based on the 3-digit indicator ICs CA3161 and CA3162.
The components used in this 80's circuit are not common today. The circuit is very sensitive and must...
The circuit shown is for testing both signal diodes (low current) and rectifiers (high current). The...
Connected to the output of an audio amplifier or radio this circuit indicates the level of the...