It finally
occurred to me that [a microwvae after a lightning storm]
can beep when it's not supposed to, it can turn on the microwaves
when it's not supposed to.
Every microwave oven I've seen over here has a
quite complex
interlock on the door that it independant of the microcontroller
syustem. No matter what the latter does, the magnetron cannot be
powered up.
So did this one. But we were often, perhaps even usually, leaving the
door closed when it was not in use, and was unwilling to count on our
breaking that habit as the only defense against the potential bad
consequences. (Or would have been, I believe; it was long enough ago I
don't specifically recall, but I suspect I didn't reason it out in that
much detail, rather than just "eep, it could turn on the magnetron,
better open it up and see if I can eliminate the processor".)
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