Horn and Whistle Forum International

So In November 2020 I went to go see most of the former Fresno air raid sirens around the city. All are SD-10s and we’re installed in 1960 according to a city website. All were decommissioned in the late 1970s and 2 we’re taken down with one in private ownership.

My favorite Siren is the Scream Master from California, especially Dual toned ones.