as interesting as it is, I've long thought that the Thunderbeam was a pretty inefficient design for a rotating siren. i never understood the thunderbeam until like 2 weeks ago... ive noticed that its VERY easy to trick ur mind into looking at the disc rotating the opposite way that it really is. :s...

2001SRNB These look like the ones I saw, but they didn't have any stickers on them, just plain white. Thanks for the info, Ive never really studied about 2001's. The difference between the 2001 AC and DC seems obvious from the names, hehehe. I actually have seen the original 2001 before, on a side ...

Ok, so I went to the airport yesterday to pick up my grandpa coming home from St. Louis. When I was going east on Pena, I noticed 2 2001 sirens along the road. This is the first time I have ever seen a 2001 in person. I was wondering, whats the difference between the 2001-130, SRNB, and all other ty...

Came across this on the siren archive.....I think some people on here are in Hamilton County, does anyone know what it is?

http://www.jmarcoz.com/sirens/colerain2_oh.jpg

I was born and raised in Norman, they have TBolt 1000Ts, SD-10s, Thunderbeams, T-128s and 2 xt22s over by Lake Thunderbird. No Sentry. One Thunderbolt, on Pickard and Imhoff, has had a broken rotator for a while, there are 2 videos of it up on youtube.

Wow, that is the highest pitched thunderbolt I have ever heard! Sounds almost like an EOWS 612.