This circuit provides a 5 V negative voltage from a positive input voltage. Found in old American documentation, information on the used integrated circuit was not provided. Probably an oscillator.
This transistorized oscillator, a modification of the Colpitts oscillator, was found in the...
This simple 2004 circuit uses a common sensor used in television and other equipment. It checks...
This crystal oscillator circuit for equipment calibration, generates a 100 kHz signal from a 1 MHz...