This 1974 circuit uses two 555 integrated circuits in a very traditional configuration. The circuit can be powered by voltages from 9 to 12 V and for greater volume an amplifier stage can be added.
Indicated for adjustment in transmitters for the 11-meter band, this circuit with analog meter was...
The L coil of this receiver determines the received waveband. The circuit is from a 1963...
September 2016 - can be purchased from Mouser Electronics the new transceivers MAX348x and MAX349x from...