This sophisticated circuit for the 90s car was found in the 1993 edition of Radio Electronics Special Projects. It uses components that are still common today.
This circuit for several frequencies was obtained in an American documentation from the 90s. The...
The 2 uF capacitor used in this circuit must be of excellent quality with a minimum of leakage to...
When the 24 V battery voltage drops below 18 V, this circuit cuts off its discharge. The circuit...