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I don't know what this device is other than sort of a doorknob; the C cells expired in 2013. What is up with C17? It's only connected on one side maybe.
#Electronics
#LooseEnds
@jspath55 I'd guess it's the receiver for a wireless doorbell or similar.
The unconnected lead on C17 forms the antenna for wireless reception.
Doorbell or lock can be determined by what's on the end of the red & yellow wires.
@bbeaker Appreciated! I was thinking antenna but had never seen one like that.
I think there is a speaker beneath; haven't unscrewed the board yet.
There was probably a push button in the same "junk" drawer.
#MightNeedThatSomeDay
