The figure shows how to use the LM3914 bargraph with expanded scale. The circuit has two adjustments determining the extremes of the LED excitation scale.
Found in a 1969 documentation, this neon lamp circuit may have the number of steps increased. The power...
The basic idea of this circuit is that, with a touch of the car headlight switch, the light...
This circuit allows selective relay actuation in the same line according to the applied voltage....