This is a typical point scale or moving bar circuit with the LM3915. We found it in old American documentation. The operational amplifier supports an equivalent modern type.
Exciting a sequential circuit with the output of a stereo we can make a set of lamps run at a...
This circuit was obtained from the Radio Electronics magazine of August 1962. It is a tandem...
This circuit was obtained in a 1991 Electronics Handbook of 1991. The publication no longer...