My Federal Signal Model D siren, quick full power run with pics 

I went over to a buddy's house on 05-14-2013 and we ran up my Model D. I recorded it with two recorders, the first one at close range out back, and the second one out front with the sound echoing off the building. This is the first time I was able to run it up at full power since I bought it, because I live in an apartment, and I don't want to upset the neighbors. I bought this siren on 05-06-2013. Both John (who I bought it from) and I originally thought it was a Model A, but thanks to murrfarms, I now know that it's a Model D. This siren came with a power cord and a custom mounting bracket when I bought it. This is the same siren I ran on my variable transformer in my last video.