Today we buffer, and get that triangle wave out to our amplifiers ... here are the first three installments of Logic Noise: The 4069UB is a hex (unbuffered) inverter. In fact, if you can remember ...
Noise-cancelling headphones have their own built-in microphone. And when the headphone's microphone detects a sound wave, the headphones create a new waveform that's the total opposite.
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