So I have a couple of these old horns from a demolition/building gutting job I'm doing, and I am wondering what brand/model number these are as well as its operating voltage. Around the coil frame are the numbers "720087" as well as "12-60~". There is a worn stamp on the back and the only word I can make out is signal.
I suspect yours is also a 12 volt version (60~= 60 hz, 12 is most likely voltage), and you'll need a 12 volt AC transformer which like an Edwards 596 6-18 VAC transformer which is what I used to power my horn (it will not run on 12 volt DC, it'll just click as you apply and remove power).
Hope this helps
Proud owner of a 2T, 5, M-5, 1000 Head, 7T, 3T22, and a single toned 2
Thank you 3t22, I kind of had a sneaking suspicion it was a 12 VAC coil, @Daniel, these were the original fire horns in the building I'm working on. A lot of these were still in place for aesthetic reasons.