carexpertandy wrote: ↑

Wed May 08, 2024 3:33 pm

I saw that Warren County is growl testing their sirens throughout the day today. Were there certain issues last night?

Not that I'm aware of. Harveysburg and Lebanon may have had issues due to power failure.

Good Ambience. I heard Mason's new 2001-130's and the 2001-SRN behind me in Cottell Park.

Unfortunately, the 130's were rather faint. You can't hear them as much in the wind.

Warren County's went off within 5 minutes of the warning being sent out. That's pretty quick despite being an all call system.

Here's the P-50 manual for reference if you need it.

https://www.dropbox.com/sh/bexk35cv5ov2 ... al+(1).pdf

You'd need a genset the size of a car to run one of these. They pull 900 amps at startup on 208 volt 3 phase. On 240 3 phase, it's around 500 amps on startup. On 480 3 phase, it's much less at 200 amps to start the siren. That 50 hp motor is a pig and requires so much energy to start. Good to know!...

It's amazing how far sirens have come in innovation. It takes far less power to run a T-135DC than that old P-50. I wouldn't mind having a P-50 in my back yard though - I could get a big enough genset to run it =D You'd need a genset the size of a car to run one of these. They pull 900 amps at star...

Here's an SD-10B that used to be part of Cincinnati Ohio's old system. It's located at US-50 and River Road by a park. It's got the bigger Federal Logo on it, leading me to believe it was installed in the 1970's.

Here's a really old image of the San Francisco Ferry building Heath siren in 1945. An electrician was working on it at that time. Holy cow! I didn't even know that another photo of the siren still in good shape existed, let alone a close up! Where did you find this photo? The only photo of this Hea...

Here's another image of the Ferry Building Heath siren from the San Francisco Library Archive:

My apologies, I did not mean to triple post.