While doing an electrical remodel in an old mansion from the 1970’s, I came across a vintage burglar and fire alarm system that was still functional! It is a Dictograph brand system that was very high end back in the day. In this video I give a tour of the entirety of the system, demonstrating the functionality of it, and explain the devices and features of the system. I was also lucky enough to be allowed to completely remove and preserve this historical alarm setup. This is the longest video I’ve ever posted to my channel, but with good reason. There were many aspects I wanted to cover about this old technology! I really enjoyed making this video, and I hope you enjoy it also. Thanks for watching!

EDIT:
After many viewer comments providing insight on some aspects of the video, I’d like to make a few corrections:

1) The heat detectors shown throughout the video are resettable, not one time use.

2) The Ademco device shown at 26:09 is a vibration sensor (Model 11) that is still in production. I could not find any information on it for some reason when recording this video.

3) The devices shown at 6:30, 9:25, and in the epilogue of this video are motion detectors, not ultrasonic glass break detectors. In hindsight, this would make better sense as all of the windows were protected by vibration sensors. I had no idea motion detectors were available for residential uses when this system was installed!

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Chapters:
0:00 Intro
1:00 Tour Of System
14:19 Control Panels
17:33 Setting Off The Alarm
19:26 Conclusion
19:42 Epilogue
29:25 Outro