I'm trying to reproduce a pull alarm from radio shack. I took it apart and followed the lines with the beep setting on the multimeter. The silicon black spot was scratched off with a razor blade. Unable to tell how it was connected inside there.
I think have got as far as possible for myself and need some assistance. What exactly is the bottom round thing with three connectors? I was thinking a capacitor of some sort. The red wire is bent and only connects to 21.
I also want to add another pull section, which was the main reason for disassembly.
The pull part is the rectangle on top.
Here are the pictures.
I think have got as far as possible for myself and need some assistance. What exactly is the bottom round thing with three connectors? I was thinking a capacitor of some sort. The red wire is bent and only connects to 21.
I also want to add another pull section, which was the main reason for disassembly.
The pull part is the rectangle on top.
Here are the pictures.
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