demodulation

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    understanding the diode demodulator circuit?

    Hi everyone, I watch this video, min 3:30 upward, and it says that the demodulation of AM is when the diode is in the reverse biased but then the current flows!!! isn’t tit the current stop flowing when the diode is reverse biased? Crystal radio circuit analysis/diode demodulation (8-Analog...
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    Pulse Amplitude Modulation using LABVIEW software

    Hello, I'm not sure that I'm doing the PAM diagram correctly in LABVIEW. What I did is that I multiplied a Sine signal with a Square Signal and just filtered the signal. Attached are the circuit and results. Please let me know if something is wrong or missing.
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