We found this circuit in the 1989 Radio Electronics Experimenter. The circuit uses common components, and the thermistor is supposed to determine the value of the trim potentiometer.
With this circuit it is possible to generate 3-phase rectangular signals from a clock signal. The...
This circuit is suggested by Motorola and has logarithmic response characteristics. For signals of low...
Although it is a common configuration today, these circuits were taken from an old publication. The...