things I've noticed... so, this Allertor's output horn has no lip. It also has a gap between the chopper donut and the bottom part of the motor housing. It's a 9/12 Emmetsburg (ex Mason City) has no lip, it also has the lower gap and is 10/12 but it has 4 pinholes drilled in the upper part of the motor housing on each side Cumberland (ex White Bear Lake) identical in appearance to this Allertor but is 10/12 Cedar Falls (ex Waterloo) has a lip, the gap, 10/12 and aftermarket vents placed in the same spot as the holes on the Emmetsburg siren. Waldorf, MN (ex Mason City) has the gap, no venting Cresco has no lip, no gap, 8/12 Prague, OK is identical to Cresco Algona also identical to Cresco Woodstock, IL is identical to Cresco (except for the custom horn assembly) New Hampton Is identical to Emmetsburg, Cumberland and Cedar Falls EXCEPT, the lower part of the motor housing is flipped. The side w/ the cover bolted to it is opposite every other pre-72 Allertor. Why are there so many customizations and oddities with these early models? Why were vents added? Why am I so focused on such trivial things? Why am I not getting any work done?
@@vantaaax This is an earlier Allertor, which means this was manufactured when ACA stole the rotor patterns from federal signal, which explains why it sounds a little different than a regular 3rd gen Allertor. Shortly after, ACA made their own rotor patterns with back curved vanes. Correct me if I'm wrong.
Actually it’s a 5T and there’s a 2001DC just north of the siren so the 5T and allertor are so close together you can’t hear the 5T the allertor out sounds it and you can just hear the 2001 siren
They were not offered simultaneously. The 10/12, original 9/12, and 8/12 were all available at separate times. The post-72 9/12 is different than this style.
@@United_HVAC_and_Fans Nah, the chopper is original. Few differences: Since this is a pre-1972 9/12 Allertor, it has a non-directional chopper meaning the siren can be wired either forwards or backwards and be equally as loud. The rotator spins the opposite way the chopper does so this one's wired backwards, but it doesn't matter since the chopper isn't directional to begin with. Post-1972, ACA used a directional 9/12 rotor as well as a directional stator for higher efficiency. This type of Allertor rotates the same way the chopper does and is only meant to spin counterclockwise. If they're wired backwards, the chopper won't move as much air and the output won't be as efficient. Also, the 12 port is more dominant on post-1972 Allertors since it's up top rather than having the 9 port side be up top like it is on this Allertor.
Alright so Sirens of NW WI is wondering, is there a small logo 2001-130 near a Costco in Maple Grove, MN? (Small logo 130's dont exist, which I told him 10000000 times already)
Small logo 130s do exist, we have some down here in the Dallas metro - hell I’ll record one next month to prove it - but yeah, the one you’re talking about at the Costco is an SRN.
It wouldn’t be on the Waseca County tornado siren system if it was a railroad siren. This is used for tornadoes and severe thunderstorms, nothing else.
This is the first time I have seen a 1st gen 9/12 Allertor recorded! Very nice!
Thank you for getting an updated recording of this Allertor!
Hard to believe that siren is still standing today
Fantastic video, as usual
This and thunderbolts are my absolute favorite sirens
things I've noticed...
so, this Allertor's output horn has no lip. It also has a gap between the chopper donut and the bottom part of the motor housing. It's a 9/12
Emmetsburg (ex Mason City) has no lip, it also has the lower gap and is 10/12 but it has 4 pinholes drilled in the upper part of the motor housing on each side
Cumberland (ex White Bear Lake) identical in appearance to this Allertor but is 10/12
Cedar Falls (ex Waterloo) has a lip, the gap, 10/12 and aftermarket vents placed in the same spot as the holes on the Emmetsburg siren.
Waldorf, MN (ex Mason City) has the gap, no venting
Cresco has no lip, no gap, 8/12
Prague, OK is identical to Cresco
Algona also identical to Cresco
Woodstock, IL is identical to Cresco (except for the custom horn assembly)
New Hampton Is identical to Emmetsburg, Cumberland and Cedar Falls EXCEPT, the lower part of the motor housing is flipped. The side w/ the cover bolted to it is opposite every other pre-72 Allertor.
Why are there so many customizations and oddities with these early models? Why were vents added? Why am I so focused on such trivial things? Why am I not getting any work done?
But most importantly; why did they make it look like a toilet?
I think I'm going to see this one test in a couple of days
Hope to god it’s still standing + test actually happens today
Yes hi person who we accidentally met up at but we didn’t notice eachother
Just 0.2 miles south of the allertor there’s a model 5 or 7 maybe a 5T or 7t on the same road in Janesville
Oh nice I went camping at a spot near Janesville a few months back!
These gen 1 allertors have the same rotor/stator design as an SD-10!
pretty sure that’s false. since sd10s are federal signal. they have the same port ratio though if that’s what you mean
@@vantaaax This is an earlier Allertor, which means this was manufactured when ACA stole the rotor patterns from federal signal, which explains why it sounds a little different than a regular 3rd gen Allertor. Shortly after, ACA made their own rotor patterns with back curved vanes. Correct me if I'm wrong.
@@szsirensofmn sounds legit to me
Actually it’s a 5T and there’s a 2001DC just north of the siren so the 5T and allertor are so close together you can’t hear the 5T the allertor out sounds it and you can just hear the 2001 siren
Nice Allertor! 😃👍
Wow someone has filmed the siren going off
A 1st or 2nd generation and 9/12 port allertor? Very rare
this is a 1st gen 9/12 because the projector has no lip
There’s a model 5 or 7 maybe a 5T or 7T just .2 miles south of the allertor
Very epic !!
Did these early allertors also come in 9/12 before only being 9/12?
They were not offered simultaneously. The 10/12, original 9/12, and 8/12 were all available at separate times. The post-72 9/12 is different than this style.
@@mnsirens ok i see so this ones chopper was swapped? Im still learning about ACA sirens and history.
@@United_HVAC_and_Fans Nah, the chopper is original. Few differences: Since this is a pre-1972 9/12 Allertor, it has a non-directional chopper meaning the siren can be wired either forwards or backwards and be equally as loud. The rotator spins the opposite way the chopper does so this one's wired backwards, but it doesn't matter since the chopper isn't directional to begin with. Post-1972, ACA used a directional 9/12 rotor as well as a directional stator for higher efficiency. This type of Allertor rotates the same way the chopper does and is only meant to spin counterclockwise. If they're wired backwards, the chopper won't move as much air and the output won't be as efficient. Also, the 12 port is more dominant on post-1972 Allertors since it's up top rather than having the 9 port side be up top like it is on this Allertor.
@@BusMaster99 o k
@@mnsirens do 10/12 and 8/12 ports also work?
Alright so Sirens of NW WI is wondering, is there a small logo 2001-130 near a Costco in Maple Grove, MN? (Small logo 130's dont exist, which I told him 10000000 times already)
That’s not a 2001-130, that’s a 2001-SRN.
@@mnsirens I FRICKING TOLD HIM, TIME TO GO BRAG >:D
Small logo 130s do exist, we have some down here in the Dallas metro - hell I’ll record one next month to prove it - but yeah, the one you’re talking about at the Costco is an SRN.
Jared is correct. There is one not too far from Maple Grove, in Brooklyn Park.
Oh I didn't know that!
Old style 9/12? Ebic.
Epic!
The rotating model 7T!
Yessss 😩😩😩
10/12 vs 8/12 ports work as well(?)
But idk if it works or not
What the heck is that thunderbolt 1000t!!!!!!!!!!
Do you know What building
Early allertor?
Yes
Yo can tell by the long motor housing and the short intake horn and the skinny top hor
Cool
hot
is this rotating in the correct direction
No, this siren is reverse wired. However, because these older Allertors are straight-vane, it doesn’t matter a whole lot.
ok
@@mnsirens if i am wrong is that a sd-10 chopper?
It’s not the SD-10’s chopper specifically, but it is very similar to it.
@@mnsirens oh
Before: mobil directo
after: allertor
aca 😃
Whoo
Fun fact: This is a *railroad* siren.
It wouldn’t be on the Waseca County tornado siren system if it was a railroad siren. This is used for tornadoes and severe thunderstorms, nothing else.
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thats a mobil directo