Using a capacitor as a sensor, this circuit was found in the 1989 Radio Electronics Experimenter magazine. The circuit must be assembled in a shielded box.
The circuit shown in the figure is based on the ST Microelectronics TDEO0160 (www.st.com) and...
This circuit for communications receivers was found in the January 1974 issue of Radio Electronics...
Found in old English documentation this circuit evaluates the power of a transmitter. The circuit has...