Yes alot of alarm system disable the ignition one way or another some by turning of the 12 volt to the ignition some by killing the 12 volt to the starter motor.
Probably not much because 6 Volts is not enough to power a 12 Volt coil
usually at either an electrical supply house or at a security company i.e. ADT
No
Yes, when converting from a 6-volt system to a 12-volt system in a vehicle, you typically need to replace the coil with one that is compatible with 12 volts. This is because a coil designed for a 6-volt system may not be able to handle the higher voltage and could lead to issues with the ignition system.
No. Is a 6 volt system.
Can I run 480 volt , 60 HZ motor at a 380 volt , 60 Hz system?
1967 was the first year for the 12 volt system in the VW's.
If you jump a car or other vehicle with a 6 volt electrical system using a 12 volt battery, you can blow out the 6 volt battery. When they are connected, it usually only takes a fraction of a second to start the six volt system. There should be a person ready to start the 6 volt system immediately if not sooner so the 12 volt system can be disconnected immediately before the battery overheats and burns out.
No.
No, you cannot.
No.