Vintage BRK 1769ACI Smoke Detector

Demo of a very unique BRK smoke detector from the 70's. The 1769ACI smoke detector was made by BRK Electronics Inc sometime in the 1970's, probably late 70's. It succeeded the original SA769AC and preceeded the 1839ACI. I assume BRK was going for a completely different style since this model is much different than its predecessors and successors. It has a design similar to BRK's 1800 series system detectors, and was probably designed to go alongside the system series. However it's slightly bigger than the 1800's and the top vent design mocks the SA769AC, 77R, and SA76RS. Contains a BRK-made electromechanical vibratory horn, the same horn that the 1839ACI and 2839ACI used. Very unusual cool old alarm. --- ✦Follow me on instagram:   / baf.vintage   ✦Find me on facebook:   / benson41011   ✦My Flickr: https://www.flickr.com/photos/1275185... ✦You can also find me on the VCF forum (@benson41063) and TFP forums (@benson41011)