The holy grail I have been searching for for eight years: An IBM/Simplex 4037. I was going to make an unboxing video, though I scrapped the idea as I felt it was going to be redundent.
So why exactly two devices in one video? Both devices belonged to the same school. The school in question was being demolished, and thankfully some of these rare horns, a number of bells, and stations were saved from a violent demise. The horns were used in the school's original fire alarm system, and the bells as class changing devices. Both work flawlessly for their age!
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Негізгі бет IBM/Simplex 4037-1B Horn & IBM RVF 4015-6A Vibrating Bell Test
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