Found in an Electronic Design of 1964 this circuit has a control for the frequency and another for the active cycle the signal. The bipolar transistor can be a general-purpose type.
This crystal oscillator circuit is indicated for use as a frequency reference in the calibration...
This circuit was obtained from the 1976 Siemens integrated circuits manual. It is the circuit for...
This simple circuit, powered by 4 batteries or 9 V battery, brings together several functions of...