We found this circuit in a 1997 documentation. It can be used in any common 12 V source and has two relays that disconnect the source in the event of a short circuit.
This circuit uses a Norton operational amplifier to generate 1 kHz pulses with a 1 to 60...
Found in an old English publication this circuit uses a dual gate MOSFET. Coils not specified....
This simple regulated power supply was found in a 1977 documentation. The zener diode determines the...