Question regarding the new T-135 AC/DC (T-32)

[Alasiren1977]

What makes this siren so much louder than the T-128? I know the T-128 has a 48v motor, what is the size of the T-132 motor?

[JasonC]

It's just a scaled up T-128. Not sure about the specs.

[Hacksaw]

I'm sure it's a 72 volt motor on the T-132, it needs 6 batteries.

[va_nuke_pe]

Yes, it is a 72VDC nominal voltage (6 12-V batteries in series) design. The technical manual says it is 300 amps motor current (running). That corresponds to 29 HP - versus 50 HP for the old T-135-AC/P-50. The siren head weighs 500 pounds with the CG directly over the pole mount (650 lbs crated weight with pole mount). That is in comparison with the 2,000 lb crated weight for the T-135-AC/P-50.

[Jim_Ferer]

VA,

Would you agree, then, that the new siren is a more elegant design and that the P50/T-135 was more of a brute force approach to the highest possible output? OTOH, the new siren is single tone and its output rating maybe owes a little to the marketing department.

[Thunderbolt 612]

Very nice manual, just as good as the T-128.

[va_nuke_pe]

I would agree that it is a far more elegant design than the P-50. I disagree that it is "marketing." I was in the bucket truck 105 feet in front of one of those babies and was reading 131 to 132 dBC at 10 feet off the centerline. That corresponds to the 132.5 dBC on the centerline.

Believe me, these puppies do as advertised.

[Alasiren1977]

Has anyone heard the new T-132? Does it sound the same as the T-128?

[va_nuke_pe]

Yes, it sounds exactly like a T-128 - same alerting tone (500 Hz), same wail frequency limits, etc.

Yes, I heard it from about 100 feet away in a bucket truck.

[RamFett]

The city of Wauwatosa, WI (where I live) recently got one of these. We lost our building-mounted P-50 to a fire in 2006. The siren wasn't damaged, but controls were. Later on, scrapmetal thieves dismantled and stole the siren head which was sitting near the building it used to be mounted on. Anyway, in June of last year, we got a new pole mounted T-135AC. I haven't heard it yet, but I will be sure to get a test of it on video some time in the next couple of months (whenever they test next).