Found in a documentation from the 70s, this circuit causes the courtesy light of the car to remain on for an additional time after the doors are closed. The time depends on C1.
This circuit was found in an old Philips publication. The circuit supplies a voltage corresponding to 4.5 V...
This circuit was found in Radio Electronics from the 90s. It uses a transconductance operational...
This 500 MHz oscillator has an output power of 1 W when powered by a 20 V source. The circuit was...