Found in a 1964 Electronic Design, this circuit shows how to modulate a signal with a dynamic low impedance microphone. The circuit operates in the FM range (88 to 108 MHz).
This circuit provides a signal that is twice the frequency of the input signal. The circuit was...
An interesting application of the 4093 integrated circuit is the one shown in the figure, in which...
This tunnel diode oscillator was found in July 1986, Radio Electronics magazine. Note the low...