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 generates circles on the screen of an oscilloscope. The circuit is from old...
This very low resistance meter was found in the February 1995 issue of Electronics Now magazine. The...
This switch can only be triggered when the mains voltage goes through zero and can operate as a...