Several people have the horn of a horn speaker with no driver. Billy R.
told me he had good success putting a small speaker and matching
transformer inside burned out drivers. I was considering manufacturing
new cast iron "blank" drivers, that could be fitted with a speaker and
machined to fit various size horns, if there was enough interest. I
would estimate the cost to be around $30 to $40 each.
If you are interested in purchasing an item like this, please email me
John A. Hern Jr. 1900 Millview Coeur d'Alene, Idaho 83814