Michael Kennedy wrote:

No, I've never taken one apaprt. I didn't realize that they were so simple,
but then again I don't have a garage door opener, or a garage door for that
matter.


Most of them are so poorly designed you wonder how they work, at all.


I had a friend who owned a garage door business, and ended up
repairing the things for a few years. I even repaired one of the '50s
transmitters that was mounted under the hood of a car. What a piece of
junk!


--
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