This circuit was found in the May 1982 issue of Radio Electronics magazine. The circuit inverts the polarity of a power supply to obtain a voltage of -5 V.
Found in a 1965 Electronic Design, this circuit produces a signal with the waveform shown in the...
Activating a relay from pulses (from a monostable, for example) can be useful in many types of...
This filter, found in an old manual, has characteristics of reduced overvoltage given by the graph...