This 2002 documentation circuit is suitable for automotive use. The circuit is based on an integrated that is not common today and has a medium power stage with a BD135.
This simple circuit makes use of a buzzer with a 6 V oscillator, compensating for the 2 V voltage...
In the figure we show another configuration for a crystal-controlled overtone oscillator using a...
The circuit that we give below has two possible applications: it can be used to control a lamp...