The Stovebolt Site Forums The Shop Area The Electrical Bay Horns and Amps, how many?

My 6 volt horn works as it should, unless the lights are on and then is pretty weak. Still running 6 volts. I do have limited 12 volts available via a 6 to 12v stepup transformer rated @ 10 amps that powers the radio. My thought is to seperate out the horn wiring and power with 12v. However without a small 12v battery in the mix I do see this not working due to the horn drawning more than the transformer can supply. A small 12v battery would work for radio & horn but then how to regulate the charging current.......Complications!