Auto-Matic Alarm Systems Model OC-9: Difference between revisions

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{{Infobox siren|voltage=12|company=Auto-Matic Alarm Systems Co., Inc.|type=[[Omnidirectional]] [[Electromechanical]]|current=AC}}
{{Infobox siren|voltage=12|company=Auto-Matic Alarm Systems Co., Inc.|type=[[Omnidirectional]] [[Electromechanical]]|current=AC|image=SipexOC-9.jpg}}


The '''Model OC-9''' is a small, omnidirectional siren produced by Auto-Matic Alarms Systems Co., Inc, based out of Chicago, IL. Not much is known about the company or the siren, and few units exist today, with most being in private possession.
The '''Model OC-9''' is a small, omnidirectional siren produced by Auto-Matic Alarms Systems Co., Inc, based out of Chicago, IL. Not much is known about the company or the siren, and few units exist today, with most being in private possession.

Revision as of 03:21, 29 August 2024


Auto-Matic Alarm Systems Model OC-9
Company Auto-Matic Alarm Systems Co., Inc.
Type Omnidirectional Electromechanical
Voltage 12 V AC

The Model OC-9 is a small, omnidirectional siren produced by Auto-Matic Alarms Systems Co., Inc, based out of Chicago, IL. Not much is known about the company or the siren, and few units exist today, with most being in private possession.

History and Design

1st generation

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2nd generation

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