it's a 7 1/2 HP motor , the original run of Type 7T's with the heavy rotors. 3 phase also.

I got lost on this topic at first.... Who is seeing SD70m's?? Those are E8's EMD's, I think they are 1,200 HP each... Nice photo's.. That could be the "City of New Orleans" train in the 1950's.. Famous train!

In addition to my above post.. here is a Model 5 with a 7 1/2 HP motor to back up my statement.

http://www.longislandfirealarm.com/smithtown2.jpg

it started in 1940 the FEDELCODE # 2, 3, 5 and 7 1/2 verticle sirens or TYPE/ MACH as what was on the spec plate. I have a MACH 3, 3 HP. it's like from 1941... There was never a "model" 3 or 7 siren made. When Federal started using "Model" as a description only the model 2 and 5 ...

Both video's were dumb.. again! That 3 minute straight siren cycle is so annoying.. If they did rounds , rises and falls like the sirens I have always heard i think i'd like them more out your way ... HERE listen to this.. This is how sirens should sound!!!! http://www.longislandfirealarm.com/CarleP...

I dont like these tornado sirens at all out west. Sounds terrible! Why the steady sound for 2 or 3 minutes..? They should rise and fall like a normal air raid siren to get ones attention.. A steady long cycle like whats heard here would drive me to want to shoot the thing.. shut her down man! seriou...

AMAZING!! GREAT WORK! the SD10 is perhaps the best federal siren ever made! very glad to see these still standing in Los Angeles... !

I still dont understand why the tornado sirens cycle is like 3 minutes straight at full RPM..gets a little annoying.. They should change it to have some rises and falls in there to make it more exciting. A little air raid sounding instead.

Im sorry but that is extremley pathetic to replace a SD10 or STH10 with that electornic sspeaker array piece of junk!! embarrassing!!

yea that's a nice siren and very cool that they blow it 24 hours a day.. most p*ssy departments shut theirs down after 8PM.