The circuit shown with the LM3914 was found in the March 1992 issue of Radio Electronics magazine. The circuit has a full-scale adjustment.
This circuit was obtained from the March 1994 Electronics Now magazine. The circuit uses a common...
In the figure we have a simple shield of 1 transistor. The supply voltage depends on the relay. The...
This is one of the many versions of this type of indicator that the reader can find on our...