We found this circuit in the June 1987 issue of Radio Electronics magazine. With it, it is possible to receive signals from the bands determined by the crystals in a common medium wave receiver.
This traditional direct amplification MW radio configuration was obtained in an American...
This circuit was obtained in a manual from the 1977 chain store Radio Shack. The circuit...
This circuit can be used in physics experiments, in ionization and in several other applications. The...