With a 120 ohms resistor this circuit can also be used as a shield for 3.3 V output voltages. The circuit uses an opto-diac enabling the control of triacs connected to the power grid with total isolation.
This simple calibration circuit consists of a crystal oscillator that generates an accurate 100 kHz...
This circuit generates 5 notes in sequence, which are programmed in the connections of the 4017...
This circuit makes use of comparators and common operational amplifiers, having been found in...