Found in documentation from the 1980s, this circuit is used for resistive loads (incandescent lamps). The triac must be equipped with a heat sink.
The 2009 project is based on the integrated circuit9 LM317T, an adjustable regulator with 3...
This is a traditional 741 configuration with gain close to 100. We found it in the December 1972...
This differentiator for the positive front of the input signal can be elaborated based on any...