Wed Mar 22, 2017 9:01 pm
Hi, I'm new to the Siren Board, but have seen this interesting post about Scream Master. Here in Colorado Springs, Colorado, between 1959 and 1989, we had a lot of air raid sirens throughout the city and El Paso county. They were a mix of: Federal Signal 550AT's, Model 5T's, B&N Mobil Directos, and Thunderbolt 1000's, and 1 Allerter. I looked at the spec plate located on the power box of the 550AT nearest to my house and it said: Scream Master Siren, 240 volts 3 phase, 20 HP, 125 dB, Scream Master Corp., Pamona California. At the time I thought that was the manufacturer of the whole siren, but now as I have gained knowledge of them, I think that Scream Master Corp. made only the mounting poles, since all of the sirens had the exact same mounting pole with the stand at the top and the climbing spikes and identical power boxes. Also, the 550AT's and 5T's and I believe the Mobil Directos were first put up in 1959 and were tested every first Friday of the month at noon. The Thunderbolts came in the 1970's, but still had the same poles as the other sirens. So I was just wondering if Scream Master assembled the sirens using their poles with the Federal Signal models and sent it as one unit. Any thoughts?