Playback & Record; Playing Music; Light-Controlled Music; Touch-Controlled Music - Elenco Electronics Projects 306-511 Instruction Manual

Project #308
Project #309

Playing Music

OBJECTIVE: To play the three built-in
songs on the recording IC.
Use the circuit in project #308. Turn on the
slide switch (S1), then press the press switch
(S2) to start the first song. When the music
stops, press the press switch again to hear the
second song. When the second song stops,
press the press switch again, the third song
plays.
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OBJECTIVE: To demonstrate the capabilities of the recording
integrated circuit.
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 5 seconds, and then turn off the slide switch (it also beeps after
the 5 seconds expires).
Press the press switch (S2) for playback. It plays the recording you
made followed by one of three songs. If you press the press switch
before the song is over, music will stop. You may press the press
switch several times to play all three songs. The lamp (L2) is used to
limit current and will not light.
Project #310
Light-
Controlled
Music
OBJECTIVE: To build a circuit that uses
light to control the recording IC.
Use the circuit in project #308. Replace the
press switch (S2) with the photoresistor (RP),
then turn on the slide switch (S1). Turn the
music on and off by waving your hand over
photoresistor.
Playback & Record
Project #311
Touch-
Controlled
OBJECTIVE: To build a circuit that lets you
control the recording IC with your fingers.
Use the circuit in project #308. Place a single
snap on base grid point F1.
press switch (S2) with the PNP transistor (Q1,
with the arrow on point E2) and then turn on
the slide switch (S1). Turn the music on and
off by touching points F1 & G2 at the same
time. You may need to wet your fingers.
Music
Replace the