Found in Mallory documentation from 1968 this circuit uses an integrated circuit from that time. The circuit has a flat response from 10 Hz to 700 kHz.
This small transmitter circuit has a range of about 100 meters, and the antenna must be connected to...
This circuit provides an output of 5 to 10 V at its output from inputs of 1.5 to 4.5 V. The output...
This circuit was found in the February 1990 issue of Radio Electronics magazine. The gain is given...