Video - what happens when a diaphone runs out of air.

[Daniel]

Apparently this diaphone's control circuit was damaged by Hurricane Sandy. This belongs in the video section, but it isn't technically a siren video.

http://www.youtube.com/watch?v=gLt8JjgY5bM

[Reedsiren1]

Hah, that's neat. The Diaphone actually sounds like a siren on it's continual tone.

[german_siren]

sounds really coool like an ultra slow hi/lo signal with an unlinear coast down with an apprupt end!

[holler]

Sounds like a DC siren with dying batteries.

[CrazyCalvinWilliams]

^I thought that myself.

[DJ2226]

Reminds me of a Thunderbolt for so odd reason.

[CrazyCalvinWilliams]

I think this T-Bolt may be the one you're thinking of:

http://www.youtube.com/watch?v=gy-vipdTMnE

[echo1030]

It sounds like it is hooked up to a Very Large air rezivuar/tank since it is able to produce a sound for such a long time!

[CrazyCalvinWilliams]

Yeah, I've never heard a Diaphone in continuous mode run for that long at once. Either that, or is has an air compressor or pump hooked to it.

[echo1030]

As we all know, Diaphones use a LOT of air when activated. I once saw a video many years ago of a diaphone hooked up to a propane tank filled with air! That would probably have enough pressure to make it run for over a minute. Maybe this diaphone has the same setup.