This indicator with the integrated circuits CA3162E and 3161E was published in the July 1990 issue of Radio Electronics magazine. The circuit can be used as a basis for 3-digit projects.
This is the circuit that decodes the signals from the CIR3059. The adjustment of each frequency is made in...
This circuit measures the strength of audio signals. We found it in an American publication from...
This circuit is from a 1974 Ferranti transistor manual. The circuit is analog, and the components used...