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Our old vehicle's horns power draw ?

Cranky

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Found a horn (probably off my Belvedere?) that still works but it didn't seem very loud. Last time to check one was back in the 70's. Is a 6 amp battery charger stout enough for a horn test?
 
Tried it with 15amp charger.....better but thinking it's a low side horn but it still sounds a bit soft. Oh well, thanks!
Should be good enough for a test. They run through a relay so they get battery voltage and full amps minus connector resistance. Good question. I don't remember anyone ever stating how many amps they draw.
 
Tried it with 15amp charger.....better but thinking it's a low side horn but it still sounds a bit soft. Oh well, thanks!
I see in the manual, you use an ammeter to adjust the horns. Between 6 and 8 amps for Sparton's and 8-10 for Autolite horns. (1964 Dodge manual)
 
Tried it with 15amp charger.....better but thinking it's a low side horn but it still sounds a bit soft. Oh
Try it right off a car battery for comparison.
 
**** Cranky, I thought you knew everything about everything. :lol:
6 volt will work, 12 volt better.
 
**** Cranky, I thought you knew everything about everything. :lol:
6 volt will work, 12 volt better.
I know a little something about a lot and it's usually just enough to get me in trouble lol.....heck, the 6 amp 12 volt charger made the horn sound pretty lame. The 15 amp charger was much better and the gauge was reading 6-7 amp draw. But how accurate is the gauge on a charger?
 
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