This RF circuit measures transmission power from 0.25 W to 10 W. The maximum frequency depends on the diode and the gauge is an analog instrument. A multimeter can be used instead.
This circuit was found in a documentation for radio amateurs in 1974. It can be used to generate...
This circuit was found in a publication by Gernsback from 1960. The circuit generates signals from...
The touch sensor of this circuit consists of a single plate that must be touched to obtain an...