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 presented circuit generates short pulses using a relaxation circuit with two complementary transistors...
This circuit was found in a Popular Electronics of the 80's. The NE602 functions as a heterodyne...
This circuit, from a 1988 documentation, makes successive actuation of the shower to control the...