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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Sep 2013 Posts: 1,367 'Bolter | | 'Bolter Joined: Sep 2013 Posts: 1,367 | As the title asks. My internet search suggest a range of 5 up to 10 amps. Anyone have real numbers on a original '51 trumpet 6 volt horn that's running on 12 volts?
Thanks,
RonR
RonR
1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1964 CJ5
| | | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 | You can measure it if you want real numbers for that particular horn trumpet. May be 2X the draw of a 6V. But that's OK because the internal wires are 6V big and the diaphragm is metal, so not much can happen unless horn button sticks. If you are worried, run it thru a ballast resistor and add a fuse.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn
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