As others have already stated, it is not illegal to posess, own or operate the Siratrol receiver/tone decoder. The legality issues arise with the activation capabilities. To transmit on frequencies used to activate any Siratrol requires a Federal Comunication Commision (FCC) license. Licenses are re...

The housing looks to be in good condition. It just needs a nice fresh coat of paint. Congratulations.

Nice acquisition! That is an interesting housing. My FedElCode has a three tier housing.

The spacers are just a slip fit over the armature shaft. It should just slide off. You are going to have to use a puller to get the rotor off of the armature shaft anyway. Use a little penetrating oil as a precaution, and just pull both of them off at the same time.

That pulley is more commonly called a sheave. Unless you want the exact one made by the same manufacture there is nothing special about them. I don't know what your budget is, but you can find them all day long on eBay relatively inexpensively. You do need to know the diameter. Any size change will ...

It also appears that your auto transformer is taken out if the circuit. I wouldn't worry too much. All of your apparent damaged or converted RCM parts can still be obtained. I may have a few parts as well for you, but I will have to do some digging. I also have a couple new old stock pinion gears th...

There is one Thunderbolt 1003 at the Titan Missle Museum in Green Valley just outside of Tucson. It is on the facility of the last complete Titan nuclear intercontinental ballistic missile (ICBM) launch silo in the United States. It is still on the pole and very functional. If you contact Chuck Pens...

On a "normal" set up instead of using a hand microphone the microphone/PTT cable from the radio is wired to the two tone encoder. When the activation button is pressed on the encoder set automatically closes the PTT or transmit circuit in the radio an feeds the tone audio through what woul...

Looks like it is in nice condition.

I see. I know I have one field that will fit your siren. I may still have an armature around but I'd have to take a look. If you are interested send me a PM.