Designed by Philips in 1968 to control the washer water level this circuit uses components from the era. The circuit actuates the water inlet valve.
Suggested by Motorola documentation from the 1980s, this circuit can be implemented with...
This circuit, from a publication of the 1970s, can compare the intensity of two light sources,...
The circuit shown bellow is na áudio amplifier using Darlington transistor in a complementary...