It's the ringing of the spring.....
By: Sycraft (Administrators; 21537)
Posted on: 10-09-2019 12:28.
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The way they work is they have an overly long spring under the keys. As you press it, that compresses until it can't anymore and then it buckles and slams in to the side, which completes the circuit. Makes a click, but also has ringing of the spring (and to a lesser extent the sidewalls).
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