This circuit for AC loads was found in February 1976, Radio Electronics magazine. The triac is common, and the times are given by the 20 MΩ resistor and the 1 uF capacitor.
This general-purpose transistor amplifier stage was found in the November 1993 issue of...
The integrated circuits suggested in this project are double equivalents of the well-known 555....
This shield can be controlled by positive or negative voltages of the sensor acting as a...