This is the basic full-scale circuit of an LM3914 for voltage measurement or voltage triggering and control. The power supply must be within the indicated range.
This circuit was found in the April 1983 issue of Radio Electronics magazine. Its purpose is to...
Evidently, this is a project that still needs some improvements. For example, the ignition can be...
This very low voltage regulator for 3 V input (2 batteries) was obtained in a documentation from...