@Hobbymaster1000 Actually, according to the patent this uses an LED and a light source that act as a solid state switch which rapidly turns the horn on and off in the same way as older mechanical horns. The trade-off is there's one less moving part and so the horn will last a lot longer. Many Simplex 4903 mechanical horns are still installed and functional.
@Hobbymaster1000 Actually, according to the patent this uses an LED and a light source that act as a solid state switch which rapidly turns the horn on and off in the same way as older mechanical horns. The trade-off is there's one less moving part and so the horn will last a lot longer. Many Simplex 4903 mechanical horns are still installed and functional.
NewAgeServerAlarm 2 months ago
Very interesting.
sawman3333 2 months ago
My school has these, but one of them has a lower pitch like the one on the left.
VERY COOL!
NudgeyBear5567 2 months ago
cool post the new system test!
computer120100 2 months ago
@computer120100 be patient. and also be annoyed, like me, at the mail.
NewAgeServerAlarm 2 months ago
@NewAgeServerAlarm ok
computer120100 2 months ago
Yay! I love interesting stuff especially with fire alarms. Thanks!
PlausableApple4 2 months ago
It's on Google Patents.
ilovepolice1 2 months ago
I found out the patent number, it's number 5596477
ilovepolice1 2 months ago
@ilovepolice1 Just took a look. Thanks! You found it!
NewAgeServerAlarm 2 months ago
how are you felling from surgury?
Liftmaster1280 2 months ago
How's system test 28 coming?
phillies4100 2 months ago
i think im the first viewer wow
kjmmjmmder 2 months ago