Dublin, OH Fedelcode Model 2

[Bowser]

I may have heard that one go off many years ago.
If that is in/near old downtown Dublin.

That's exactly where it is! On the roof of what used to be a firehouse but is now a stripmall-ish type building with a couple stores on the side and a State Farm insurance dealer on the front. The building's name is still the Bridge Street Firehouse.

I had a cousin who was an volunteer fire fighter there, 25 or 30 years ago.
If i remember right, it sounded in alert back then.

So even given the dampering capabilities that this supposedly has they did't use hi-lo (pulse?) for fire calls?

[Keeshah]

So even given the dampering capabilities that this supposedly has they did't use hi-lo (pulse?) for fire calls?

Given that it was 30 years ago when i heard it go off, and he ran out to go join the group on the fire run.
but i seem to remember it being one steady scream at that time.

[Jim Z]

how did they code those things? The chopper can take in air from both top and bottom, so I'm curious how they would close off airflow from the bottom.

It's single phase most likely 240VAC but possibly could be 120VAC. I don't think the model 2 was ever a 3 phase

phase is irrelevant since it's a universal motor. it would run happily on DC as well.

[Antiwhoknows]

how did they code those things? The chopper can take in air from both top and bottom, so I'm curious how they would close off airflow from the bottom.

They basically had another stator that a solenoid would turn and close the stator ports. They are kind of hard to explain, so here is a picture of what it looks like.

[Jim Z]

[Ziginox]

So even given the dampering capabilities that this supposedly has they did't use hi-lo (pulse?) for fire calls?

The Model 2 can't do a hilo signal, only pulsed steady and pulsed wail, plus a coded message (like morse code as mentioned in the ad.)

[Keeshah]

Doesn't it require a two or three tone siren, to do a Hi/Lo signal?

The #2 Fedelcode looks to be a single tone siren.


Also, would love to hear a siren typing out a morse code signal.

[Bowser]

So even given the dampering capabilities that this supposedly has they did't use hi-lo (pulse?) for fire calls?

The Model 2 can't do a hilo signal, only pulsed steady and pulsed wail, plus a coded message (like morse code as mentioned in the ad.)

Yeah I meant pulse.

Doesn't it require a two or three tone siren, to do a Hi/Lo signal?

The #2 Fedelcode looks to be a single tone siren.


Also, would love to hear a siren typing out a morse code signal.

Yes you need a siren with an even number of tones to do Hi/Lo The Fedelcode Model 2 is single tone but, due to the damper stator, can do pulse.

Unfortunately most people's neighbors would think they were just screwing around with big noise (and they'd kinda be right) if they were typing out morse code during a RWT/RMT. Owning, operating, testing, and activating a siren without being linked to the city/county is legal, lawful, and rightful. Just screwing around with 110 dB on the other hand... not so much. That's why you wouldn't tend to find videos of people morse encoding a siren.

Weird that it advertises being able to get up to full speed quickly... the windup catches peoples' attention much more than the steady regular pitch, and fast wail is harder to recognize as a siren than regular wail.

[Fletch]

I noticed this siren a few years ago. It's great that it wasn't removed when Dublin installed their current system in 1989.

I also found out from a newspaper article that Washington Township also had their own siren located on Shier Rings Rd. just west of Avery and it was probably a similar model but it is long gone.