Found in an Electronic Design from the 90s, this circuit measures the phase difference between two signals using an electronic multimeter. The circuit makes use of components of the time.
This circuit was obtained in a documentation for radio amateurs from 1975. With it we can use a...
Only for reference this is a circuito f a commercial receiver of the year 1958. The circuit uses...
This circuit is from an old American publication. The indicated transistor is oversized as the 15 V...