The purpose of this circuit is to measure the intensity of audio signals. We found it in the September 1990 issue of Radio Electronics magazine. The circuit works as a S meter.
This circuit is from a 1966 Motorola Field Effect Transistors Manual. The circuit makes use of...
We find this circuit measuring from 1 to 1000 mW of power from small transmitters and oscillators in...
This traditional stable configuration with the TTL 7400 integrated circuit was obtained in a...