Anyway, here are the photos of the siren:











I believe this siren was made in the early 1960s.
I will upload a video of the siren soon. I do not know if I will restore it. That's all!
It is 6 ports.Mark N wrote: What are the ports?
Close but the B9 has a bigger chopper than the Model A (and the B9 has the same port as the Model A too).Chicagosiren-hunters wrote:I may be wrong, but isn't a B9 the same thing as a Model A in a different housing?
Really? That would be loud!Daniel wrote:At the old high school in Silverton, Oregon, B9s like this one were used in the music rooms for fire alarms, while Model A's were in the main halls.
Return to “Other Warning Systems - Indoor, Outdoor and Vehicular”
Users browsing this forum: No registered users and 18 guests