ok so I took apart the tank on my current project and found this. It's marked 1.5V and it works fine on a single AA battery.
It also seems to work fine, albeit a little louder and higher pitched, on TWO AA batteries.
I am wiring the tank up to run a 3V LED headlight system with those two AA batteries. Will it hurt the horn in the long term to run it off the same power supply? I mean, you really only ever use the horn for a fraction of a second at a time just to show off that it works anyway...
but I'd hate to blow up an original part by running too much voltage through it.
![20220719_143824.jpg 20220719_143824.jpg](https://cdn.imagearchive.com/ratrodbikes/data/attach/201/201666-20220719-143824.jpg)
It also seems to work fine, albeit a little louder and higher pitched, on TWO AA batteries.
I am wiring the tank up to run a 3V LED headlight system with those two AA batteries. Will it hurt the horn in the long term to run it off the same power supply? I mean, you really only ever use the horn for a fraction of a second at a time just to show off that it works anyway...
![bigsmile :bigsmile: :bigsmile:](/forum/styles/fusion/xenforo/smilies/bigsmile.gif)