I recently got a horn that’s ac and diode polarized like the Pyrotronics HAC-120s you have.
@jmalerbaboss
2 жыл бұрын
Most of my high school used the edwards 374, if I'm not wrong
@daveyjenni9265
2 жыл бұрын
The first one was the best and the school. I attend had those type of buzzers and they were the best and affectedly.
@TexasRailfan2008
3 жыл бұрын
Have 3 versions of that faraday horn, the “flush” mount (the one seen in the video), the standard horn, and a trumpet style horn.
@CassandraPantaristi
4 ай бұрын
What I would do is modify/hack a modern electric fire notification appliance, and replace the sound with that of the Edwards adaptahorn so that the sound can be preserved. Same with the Firecom 2500 whoop/chime.
@Loganetics1
2 жыл бұрын
In 2016, my dad and I didn’t know better, so we hooked up my 2901-9806 to 120v AC (PlayStation 2 Power Cable Chopped Up) and it became an HAC-120. It started smoking and sparking when I tried to test it later on and kinda show my friends. Fun day!
@BoredRock112
Жыл бұрын
I have a simplex 4050 and when i try to hook it up to a 9volt battery it barly works, do i need 3 of the 9 volt betterys or is it the 4050 itself?
@BoredRock112
Жыл бұрын
And also for some reason when i sniff the back of my 4050 it smells like a old pencil sharpener, it was probly originaly in a school or collage
@Loganetics1
3 ай бұрын
@@BoredRock112the 4050 is an AC horn. Please refer to the label, it’ll tell you the voltage.
@TheSimplex4903
3 ай бұрын
@@BoredRock112the 4050 is an AC horn
@TheSimplex4903
3 ай бұрын
@@Loganetics1who are you
@Mrbushbtalls837
2 жыл бұрын
There is a Edwards Adaptahorn 374 that I found at a school my mom works at
@vintagefirealarmguy5285
3 жыл бұрын
nice. i would like to do a system test with ac horns. i would need to find a tranformer that inputs dc volts and outputs ac volts
@Fahrenheit4051
3 жыл бұрын
That's called an inverter, but you shouldn't need one. What you would need is a transformer that goes directly from 120 to whatever voltage your AC horn runs on. No need to convert to DC first. If you're trying to control them with your 4004, I believe there's a way to use the auxiliary alarm relays. Try asking one of the techs.
@hardknox7917
3 жыл бұрын
Those new grille 350s are used in a lot of instances now: Scoreboards, Carwashes, emergancy alarms. There's even one in our motorpool on the overhang, but I never stand to close to it in case someone decides to make a dumb joke and set it off
@Davesand2003
3 жыл бұрын
I've seen a white Faraday type 512 at my high school. Used as a scoreboard buzzer. I've heard it before. And it's not raspy.
@Fahrenheit4051
3 жыл бұрын
You probably saw a Federal 30A. It looks very similar, but doesn't sound raspy. It's a common scoreboard horn, and my high school's scoreboard had one too.
@Davesand2003
3 жыл бұрын
@@Fahrenheit4051 It wasn't a federal signal 30A i saw the model number of it.
@Fahrenheit4051
3 жыл бұрын
@@Davesand2003 Ok
@FourtyFiftyEighty
3 жыл бұрын
Old school near me has like 5 of those old Edwards horns. Really cool
@BlueThunderboltsiren
2 жыл бұрын
0:40 I had this fire alarm in my elementary school until I moved schools unfortunately :( I miss it dearly ngl. I'm going to find one off of Ebay, Plus the pull station that went with it because I'm obsessed with old mechanical horns. Edit: Just bought one. On it's way.
@boredreindeer5602
2 жыл бұрын
The school I am going to next year has the faraday 7410 horns, and a mixture of many other alarms,
@Fahrenheit4051
2 жыл бұрын
That's interesting. You sure they're not 5410's or 4050's?
@boredreindeer5602
2 жыл бұрын
@@Fahrenheit4051 I’m pretty sure they are the 7410s, there was actually one at another place I been to before, however I don’t remember what the place is called
@JBF-GST-Tanda
Жыл бұрын
AC horns with polarizing diodes vibrate 60 times per second, half of the vibration frequency of non-polarized AC horns, and thus can generate a deep, penetrating sound with more bass.
@Davesand2003
3 жыл бұрын
Federal signal 350 sounds broken.
@Davesand2003
3 жыл бұрын
Or it could be half wave version
@ThatOneExoRailfan
Жыл бұрын
What does the diode on the 350 do? So is it a AC Horn with a positve or negative? Im confused lol
@Fahrenheit4051
Жыл бұрын
I'm not entirely sure. It may be that there were systems with a DC supervision current but an AC alarm current. I have seen AC systems that had backup batteries just for the trouble lamps.
@ThatOneExoRailfan
Жыл бұрын
@@Fahrenheit4051 or is it just a regular AC with no positive and negative but ita the diode that makes it sound at 120hz instead of 60
@Fahrenheit4051
Жыл бұрын
@@ThatOneExoRailfan It's a 120 VAC horn. But again, polarizing it allows a DC current to travel through the wires without passing through the horns. Do you know how a NAC works? Also, the diode makes it "clap" at once per cycle (60 Hz), instead of once per half-cycle (120 Hz). This will make it sound an octave lower.
@ThatOneExoRailfan
Жыл бұрын
@@Fahrenheit4051 idk about nacs i dont have a panel or know lot about them
@Mopsspoof
3 жыл бұрын
The Faraday 7410 and Pyrotronics HAC-120 Series A1 are both used as outdoor bells at school, they are quite old so they often malfunction.
@sirdarthkprac6608
3 жыл бұрын
We've got an Edwards 374 in the hallway outside my office at work, but it's not hooked up. Kind of bums me out, I'd love to hear it one good time.
@Fahrenheit4051
3 жыл бұрын
There's one outside a church building in West Hartford. Probably still works, but may be general or time signaling.
@jomermalabanan7054
Жыл бұрын
The first alarm is my school bell
@Fahrenheit4051
Жыл бұрын
What's your school's fire alarm?
@jomermalabanan7054
Жыл бұрын
Edwards est
@SomeDudeWithAnExitSign
3 жыл бұрын
I have seen some AC horns before but all of the horns I find are disconnected.
@Fahrenheit4051
3 жыл бұрын
I've seen AC horns in several locations. One was at the Plainville town hall, which had 4040's. Photos of that system are available on my Instagram page. Several buildings at UHart also have 4040's, some of which are probably disconnected. Most of the other places I've seen them were in New Britain, CT. My second elementary school had disconnected Adaptahorns with the "FIRE HORN" badge. The actual signals were 4903+9838's in continuous. One staff member thought all the noise came from the old horns, and I think I corrected her. Another example was at the defunct Holy Cross/Pope John Paul II school. They hosted a summer carnival every year, and I was able to see a 4040 in the window. One time I heard them going off in continuous while driving by. The last example I can recall was in an old building (can't remember the name) that had dual-projector 4030's as their main alarms. It was over a decade ago so good chance this system no longer exists.
@SouthwestFireAlarms
3 жыл бұрын
Very informative
@TheArchDemon729
3 жыл бұрын
My high school had Pyratronics HACs with space age AV32s and MFS pull stations
@Fahrenheit4051
3 жыл бұрын
You sure they're the AC version? That would be really unique. So they don't sound like air horns?
@TheArchDemon729
3 жыл бұрын
@@Fahrenheit4051 from what I remember
@VintageVibratone
3 жыл бұрын
Very cool! I wonder what purpose those diodes serve on the HAC/350 horns
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