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.
Found in a 1964 Electronic Design, this circuit is intended to serve as a time base for cardiac...
A modulated (intermittent) siren, using the four gates of the 4001 integrated circuit is shown in the...
Other operational amplifiers can be used in this conventional filter that rejects only one...