Found in the October 1979 Radio Electronics magazine, the purpose of this circuit is to monitor the coolant level in a car's radiator. The circuit is based on the LM1830.
May 2017 - Mouser Electronics supplies a wide range of sources for LEDs from Mean Well with inputs for...
This ammeter measures currents in 5 ranges from 50 uA to 0.5 A using a 40 uA instrument, which can be...
This photo-receiver circuit can use either a photodiode in voltage generator mode or a...