This old indicator circuit indicates only when the fuel reaches the sensor level. The integrated circuit is not common today. The circuit was found in documentation from the 1980s.
The purpose of this circuit is to measure the intensity of audio signals. We found it in the...
The battery charger suggested in the figure has its current limited by resistor R1. This component can...
This differential amplifier, found in a 1964 Electronic Design, has a gain of 30. The setting can be...