ah-oh-ga horn;

[PineRidge]

Long before the EPA got serious, and back when I was doing HVAC work I had a set of loud air horns mounted on a service van. Had a 30 pound jug of R-12 refrigerant in the truck for air power and since the jug was always under pressure the horns were always ready to go.

 

[PineRidge]

Long before the EPA got serious, and back when I was doing HVAC work I had a set of loud air horns mounted on a service van. Had a 30 pound jug of R-12 refrigerant in the truck for air power and since the jug was always under pressure the horns were always ready to go.

 

[tf116]

Okay I took the old horn apart and discovered that it is worn a good bit......it has a round disc with V grooves and ridges, which make the neat sound....only on this one,they are about half worn out.....I adjusted the pin that rides on grooves and now it goes oooohga!....on booster battery charger on 6 volts.... thanks alot!
Mike

Sorry can't help you folks on the air horns......Mike

 

[tf116]

Okay I took the old horn apart and discovered that it is worn a good bit......it has a round disc with V grooves and ridges, which make the neat sound....only on this one,they are about half worn out.....I adjusted the pin that rides on grooves and now it goes oooohga!....on booster battery charger on 6 volts.... thanks alot!
Mike

Sorry can't help you folks on the air horns......Mike

 

[Syncro]

When I got my GMC Dump truck last month my wife was sitting in the drivers seat and asked me what that wire was hanging down along the window....... so I told her to just pull it out. Well, the engine was off and the air tanks full. I cannot describe her reaction when the air hit them double trumpets! /forums/images/graemlins/shocked.gif /forums/images/graemlins/shocked.gif /forums/images/graemlins/grin.gif Franks and beans ain't so bad.

 

[Syncro]

When I got my GMC Dump truck last month my wife was sitting in the drivers seat and asked me what that wire was hanging down along the window....... so I told her to just pull it out. Well, the engine was off and the air tanks full. I cannot describe her reaction when the air hit them double trumpets! /forums/images/graemlins/shocked.gif /forums/images/graemlins/shocked.gif /forums/images/graemlins/grin.gif Franks and beans ain't so bad.

 

[ronjhall]

If you want to use the horn on your 12 volt tractor. Get a resistor that Chrysler used on their ignition coils in the 70 and 80's. Should knock the voltage down so horn will work.

 

[ronjhall]

If you want to use the horn on your 12 volt tractor. Get a resistor that Chrysler used on their ignition coils in the 70 and 80's. Should knock the voltage down so horn will work.

 

[JRP]

If your horn is 6 volt you can make a voltage dropper as follows:

A silicone diode is a check valve for electricity. It also drops the voltage 0.7 volts. If you go to radio shach and get nine of these and hook them up in series then you will drop the volatge 6.3 volts across the nine diodes, and 7.3 volts across the horn. Mos alternators put out about (13.6 volts.). You don't need the check valve function, just the voltage drop.

This is easier than using a resistor because the drop across a resistor is current dependent. Drop across the diode is not, so no calculations are required.

If you have a volt-ohm-amp meter then use the meter to measure how much power the horn takes, using your lantern battery. Make sure you get diodes rated for more than the horn consumes.

 

[JRP]

If your horn is 6 volt you can make a voltage dropper as follows:

A silicone diode is a check valve for electricity. It also drops the voltage 0.7 volts. If you go to radio shach and get nine of these and hook them up in series then you will drop the volatge 6.3 volts across the nine diodes, and 7.3 volts across the horn. Mos alternators put out about (13.6 volts.). You don't need the check valve function, just the voltage drop.

This is easier than using a resistor because the drop across a resistor is current dependent. Drop across the diode is not, so no calculations are required.

If you have a volt-ohm-amp meter then use the meter to measure how much power the horn takes, using your lantern battery. Make sure you get diodes rated for more than the horn consumes.