In a September 1992 Radio Electronics article, we found this basic 555 circuit used to generate fixed times. Capacitor C1 and resistor R1 determine the time. The circuit drives an LED.
The input of this regulator can be between 7 and 12 V and the output is 5 V. The circuit is from...
This circuit uses common components at the time of its publication in the 1980s. The circuit can be...
August 2016 –It can be purchased from Mouser Electronics the new converters BD7F100 and BD7F200...