Elenco Upgrade Kit SC500 to SC750 - Manual (Page 83)

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Project #687
OBJECTIVE: To turn the music IC on and off using the
vibration switch.
Shaky Birthday Song
Connect the vibration switch (S4) to the circuit using the red and black
jumpers. Hold the vibration switch steady in your hand and the music
should not play. Now move your hand, the music should briefly play. If
you continuously shake the switch, the music keeps playing. Turn the
slide switch (S1) on and the music plays. Change the sound by shaking
the vibration switch.
Project #688
OBJECTIVE: To show the effects of horizontal and vertical
direction.
Vibration Detector
Connect the vibration switch (S4) to the circuit using the black and red
jumper wires. Place the switch horizontally on the table. Rapidly move
the switch from left to right and notice that the LED (D1) does not light.
There is not enough force to expand the internal spring to turn on the
switch. Now move the switch up and down and see that the LED easily
lights. It requires less force to move the spring back and forth.
You can replace the LED (D1) with the meter (M2), place it with the “+”
side towards R5 and use the LOW (or 10mA) setting. The meter
deflects more when you move the vibration switch up and down.