Oh it was kx250rider who owned the SD10s. And cool... I thought the thunderbolt was from texas or something. The Thunderbolt I have installed at the house in Moorpark came from another siren collector in Wisconsin (My wife and I drove back there to get it in 2007). I know I remember that collector ...

Yes, I have two of the Federal SD-10s; as were used in the older parts of the City of LA, as well as a Thunderbolt 1000T (used in Beverly Hills and a few other incorporated LA County cities). The Fort Mac Arthur museum at San Pedro has a restored & working Federal 500T, which was also used in th...

That's cool, that they showed you working on it! That's great advertising too for your company. I had always figured that the sirens in most cities were worked on by city or county workers, but between you and several other private contractors on the board, I guess a lot of cities are farming out th...

I think there's a Chinese company still making "Model 5s". I remember them showing up on eBay a lot in the late 2000s. If I recall, they were very good clones of the Federal Model 5. So my guess is that Federal Signal sold off the Model 5/7 patents to whomever that company in China was, af...

That map looks very accurate, with only one thing I found: F.S. #10 is at Frankford & Gibbons; had a 1000A(T) but is now gone, and the new siren is a mile west on Frankford near Midway. They demolished & rebuilt F.S. #10 about 5 years ago, at which time the T-Bolt was taken down. That was my...

A lot of them are still up, but my understanding is that none still are in use. I'll take a drive around in the next week or 2, and try to verify some. The one at Hillcrest High School is (was as of New Years) still up.

Charles

It's hard to get power companies to give 3-phase service, as you almost have to show a legitimate need (not just a hobby). Best bet is to get a rotary phase converter with a 10hp rating, if you want to have 3-phase power at home. Or as Holler says, you can get a 3-phase generator. I have a big one (...

I have no idea which siren is the least common, but I know I've only ever seen one Federal 550T (dual-headed 500T). But that might just be me… Also, the gasoline-powered T-Bolts are rare, IMHO.

Charles

Shocking find!!!! Congratulations, and I'm sure happy that it was found by one of us, and not someone who might turn it into a lamp, or something weird.

Charles

The SD-10 is gone. I looked at both of the intersections you mentioned. Were the Tbolts pole mounted? The two that I saw the photos of, were pole-mounted. If I can't find those pics on this site, or on the Internet someplace, I bet I have them saved on an old computer. I think I found and posted th...