It actually consists of a tunable field strength meter. The circuit is of an old documentation and the circuit must be tuned to the frequency to be monitored. The circuit offers the option to use a headset.
The circuit shown in the figure can be used to connect a loudspeaker to an amplifier only after...
May 2016 - Mouser Electronics already have to deliver the new integrated circuit Maxim MAX14724. It...
We found this automotive application circuit in an old American documentation. All components are...