The Thunderbolt manual states about the AR/AF timers.... The output circuitry is electrically independent of the timing circuitry.Consequently, the output circuit can utilize up to 480V. The capacity of the microswitch contacts in the signal circuit is 15 amperes AC or 1/4 ampere DC. Here's a pic of...

BTW, when are you going to cut out the brass sheets for the horn? Never. The horn is going to stay poster board. The rotator box is styrene sheet and the blower is going to be made out of the same thing. I thought about brass and even got 2 sheets of the stuff. I thought again about the brass and t...

I got the Mini Thunderbolt rotator box slapped together today. It needs a little adjusting but all the pieces are done. It looks far better with a box on the rotator. Maybe I'll get around to painting it in the next week or so. The blower box is next. http://www.civildefensemuseum.com/sirens/minitro...

The blower isn't that big. It's about as twice as long as a T-bolt later model blower. By later model I mean the blower after the original huge T-bolt blower. The whole Hurricane blower unit is smaller than the whole Thunderbolt blower unit. The T-bolt blower unit was designed to be the base of a ro...

well, i guess i do have plenty of time to think about all this. i get my permit next month, so i guess i can just get a air horn or something.

You aren't even driving yet?
I guess you probably don't even have a Sterling either.

i live in a area with no weather concerns so it should not matter, then againg people are always waiting to screw you over "Againg" people are always waiting to screw you over? I don't know if that word is supposed to be "Again" or "Aging." Either way.. So you should b...

Why would they be puzzled? Just tell them you are restoring a siren and if the stickers are available I'm sure you will be able to get them. The Federal parts lady has always been happy to help me with all of my weird Thunderbolt questions. I think the only Federal logo they have now is the FS like ...

I'm trying to figure out how this is a news story. That story is from the New York Times. They same folks who brought us the "civil defense bunker discovered in the Brooklyn Bridge" story a year or so ago. Turns out that it wasn't a "bunker" at all but an old storage room full of...

The horn was cut short to clear that tower.

I didn't either until I found out how the lifgate services work.

Ugh.. We could have dropped the T-bolt head with a liftgate.
I thought of that. But I thought you wouldn't be available to get it.

Anyway....
We did find out that an entire Thunderbolt head can be shipped UPS!!!