This circuit with different colored indicator LEDs has an expanded scale. We found it in the March 1992 Radio Electronics magazine. For an adjustable range of 0 to 10.5 V.
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...