Really Wacky Sounds

Project Number: 94

OBJECTIVE: To combine different sounds.

Description: Build the circuit shown. Turn it on, press the press switch (S2) several times, and wave your hand over the photoresistor to hear all the sound combinations. You can make the sound from the music IC louder by replacing the 100 ohm resistor (R1) with the 2.5V lamp (L1).