Re: Alternative horn switch
Posted: Tue Aug 19, 2025 10:19 am
Well done! 
That makes no sense, as each horn now has only 6v instead of 12v ... before anyone gets technical, yes, that is an approximation as I don't know the relative resistance values of the 2 coils.Mr Spigot wrote: ↑Tue Aug 19, 2025 10:09 am To conclude, I have resolved my horn dilemma and followed a simple route. To clarify, the original horn is a Lucas Altette and although properly adjusted and working perfectly loudly, is quite high pitched. Rummaging in my garage I found a box of old horns bought for a motorbike restoration project, among which was a Clear Hooters HF500 horn. Testing it on a battery it worked perfectly with a loud low note. I have bolted it to the opposite side of the engine bay to the Lucas horn (mounting hole already there) and wired it up directly in series with the original horn. The result is a nice loud, balanced note, quite sufficient to warn other road users as required. Job done!
Point is, have you wired them Series or Parallel...
I'm guessing you mean Parallel, but I'd like to clarify the point for anyone else reading this in the future considering the same modification...
I thought as much, just wanted to clarify it for anyone, not knowing the relevance, who might read it at a later date.