The answer is Mouse Wizz. Mice love sirens almost as much as they love generators. They nest there and the urine accumulates in the nest material. Mouse urine is as corrosive to insulation as battery acid is to car bodies. Secondly, motors are insulated with VARNISH, not shelac. The windings are dip...

Well if all you young fellows who wish to know a thing or two about Sterling Siren Fire Alarm will pull your safety switches and pull up a seat, including Bill Yarberry, who I never heard of till I read this post, I'll see what I can tell you. I'm a cantankerous half deaf old fart, and the last man ...