I am new on this post. I been tinkering with this old senitive vibration sensor. i am trying to replace this tin can style 741. there not much room
in this enclosure to add a protoboard with modern 741. any sugestion
please?

Now there's an idea!LOGICCONTROLS wrote:I am please with it because it use a hall sensor with magnet to detect vibration on my garage door when some one pulls In my drive way alerting me some one is here.
Jeremy
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