With this circuit it is possible to measure RF signals with a common multimeter. Signals up to 200 MHz can be detected. The diode supports general-purpose equivalents.
This circuit was described in an article in Electronics Now magazine in December 1995. The circuit...
This circuit squares the waveform of a signal applied to its input. The circuit is from an old...
This circuit was obtained from a European magazine of the 1990s. The integrated circuit used is...