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And now for something completely stupid. The Tweety Bird noise toy.

I got it working on the scope.
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That simulation I did back in July on CircuitLab was surprisingly close!
 
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A video of what that sounds like

Midnight Special's video shows one chirp. I will have to figure out what can be adjusted to eliminate the repeat I have in this one. edit: I think the 10uF cap needs to be in series with the switch. I'll try tomorrow.
 
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