Elenco Upgrade Kit SC500 to SC750 - Manual (Page 46)

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Project #601
OBJECTIVE: To create a sound circuit.
Alarm Power
Project #602
Alarm Power (II)
OBJECTIVE: To create a sound circuit. OBJECTIVE: To hear the sounds of the night.
Project #603
Night Sounds
In this project, the alarm IC (U2) powers the motor (M1), meter (M2)
and LED’s (D1 & D2). Leave the fan off of the motor. Set the meter to
the LOW (or 10mA) position and turn on the slide switch (S1). The
circuit pulses the meter, motor, and LED’s.
Remove the motor (M1) from the circuit and now the circuit pulses
around 1Hz. Simulate the sound of a forest at night by replacing the motor (M1) in
project #601 with the whistle chip (WC).
!
WARNING: Moving parts. Do not touch the motor
during operation.
To learn more about how circuits work, visit www.snapcircuits.net or page 85 to find out about our Student Guides.