Found in American documentation from the 1980s, this circuit shows how to use an LM3909 pulsator in a high-power variable circuit.
This well-known siren configuration using complementary transistors is from a 1980s documentation. The...
This circuit was found in an old American magazine and could make use of more modern components...
This circuit is from the Philips integrated circuits manual of 1990. It is intended for magnetic...