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Vintage break glass fire alarm

Vintage break glass fire alarm

In a word: sweet. This was a heavy duty fire alarm break glass manufactured by J.H. Scharff. It bears the letters "ATMO" at the top, but I am clueless as to what this could mean. One thing strange about this is that it is rated 2A @ 120 VAC and 1A @ 120 VDC. Both voltages would be unusual in a fire alarm circuit, unless somehow this also was directly wired to a bell via a closed circuit (hence the convenience of a 120 VAC line in).

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Very cool. Never seen one quite like that.
-paintboy49dwj, 2010-02-16 01:03:48

Sweet! I have one of these from Grossinger's! :)
-Joe4speed, 2010-09-04 04:55:45

Last of the Mohicans

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Plus icon EXIF data

X-Resolution72 dpi
Y-Resolution72 dpi
Exposure0.2 sec (1/5)
Exposure Bias0 EV
Focal Length50 mm
Focal Plane X-Resolution4433.295337 dpi
Focal Plane Y-Resolution4453.608247 dpi