Looks like someone took two whelen 400Xs and mounted them on a pole, that's weird

I can measure it when I get home, you are talking about the middle of the chopper right?

Jared H wrote: ↑

Thu Jan 18, 2018 6:15 pm

San Angelo is removing their system at some point, I'd like to see those end up safe..

If you have any more information I'd be interested.

I am planning on building a model P-10 or P-15 and was wondering if anyone knew the dimensions so I could scale it down. Thanks!

If anyone knows of any upcoming or recent siren removals I would like to know, Thanks!

Jared H wrote: ↑

Sat Nov 04, 2017 12:59 am

Alright, what on earth is this? I've seen a couple say it's a Hedberg.

Haha is this the one in mineral Wells? I posted that one on here a while back!

Edit: just checked the address and it's the mineral Wells one. If anyone has an answer I'd love to know

Any idea why you can year the normal tone slightly in the background of this video? https://youtu.be/We8Mgv8Z1is If I'm not mistaken that's the transformers in the amps. Ah, so the frequency of the tone is flowing through the transformers which makes the transformer hum at that tone instead of the ...

If you watch carefully on the Hawaii videos you see them testing each amp one by one by connecting and disconnecting them while the tone is running. What you hear is the drivers associated with that amp broadcasting the tone when that particular amp is connected. Which verifies also what's being sa...

Cool!

Ok, Cool, good way to check if each driver is functioning properly