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.
April 2017 - New Texas Instruments DRV8x brush motor drivers for 1.7 to 8 A currents and voltages...
This circuit was found in a technical documentation from the 90's. The transistors can be...
This circuit was found in American documentation from the 90's. The circuit applies to any...