Amazon.com: 2-Way RCA Stereo Audio Switch Input Signal Source Switcher Selector Splitter Box（2 in 1 Out / 1 in 2 Out）-RC21 : Electronics
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The Basics of Arduino: Reading Switch States
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![Audibility of audio switches - [English]](https://www.tnt-audio.com/jpg/ct3_family.jpg "Audibility of audio switches - [English]")
Audibility of audio switches - [English]
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