Got this Older Beige Simplex 4050 with Dual Projector. Thing is incredibly loud. As you probably well know now, I’m into older AC devices. Just love that 60hz sound.
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you should definitely share this with old school fire alarms!! i’ve never seen a faraday horn with a federal signal PR projector. I know faraday based the design of the 5400/5600 on the federal 350 and 450A’s.
One of the schools in my area has some of these, sadly I don’t know anyone at that school.
LeBron James’ HS in Akron has 6 volt 4050s with the black label! I have a post on here about it under the “what fire alarm do you have at work or school?” category.