Elenco Upgrade Kit SC500 to SC750 - Manual (Page 135)

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Use Winscope to view the waveform and frequency spectrum
when playing back your recording and music. A sample music
waveform is shown here.
Sample music waveform
Build the circuit shown. Turn on the slide switch (S1), you hear a
beep signaling that you may begin recording.
Talk into the
microphone (X1) up to 8 seconds, and then turn off the slide switch
(it also beeps after the 8 seconds expires).
Press the switch S2 for playback. It plays the recording you made
followed by one of three songs. If you press the press switch (S2)
before the song is over, the music will stop. You may press the
press switch several times to play all three songs.
Project #PC41
Power Amplifier
Playing Music IC
OBJECTIVE: To show how high amplification can distort music.