Elenco Snap Circuits® Deluxe Sound & Light Combo - Manual (Page 99)

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Project 196 Sound Energy Demonstration
Pour salt, glitter, or small foam/candy
balls (not included) into the container,
but do not cover the bottom.
Assemble the Sound energy demonstration container (as per page 7, or
shown on next page) if you have not done so already. Build the circuit as
shown. Turn off the left slide switch (S1) and turn on the right slide switch.
Lay the speaker (SP2) down on the unused 3-snap and 6-snap wires (to
elevate it slightly off the table); be sure it is lying flat, and place the sound
energy demonstration container over it. Pour some salt, glitter, small foam
or candy balls of 0.1 inch diameter or less (not included) or similar into the
container, but not enough to cover the bottom.
Press the keys on the keyboard to make sound. For some keys the
salt/glitter/balls will vibrate and bounce or dance around in the container,
find the key that gives the best effects. Most keys will create little or no
vibration. For the best key, adjust the TUNE knob on the keyboard for best
effects.
Now turn on the left slide switch and move the lever on the adjustable
resistor (RV) around. At some positions the salt/glitter/balls will vibrate and
bounce or dance around in the container; find the setting that gives the
best effects. Press some keyboard keys to add more sound effects.
Experiment with different materials in the container and see which give
the most impressive results. Our engineers found that nonpareils (round
decorative candy sprinkles) of up to 0.1” work best.
Try lifting the container a little higher above the speaker with your hands,
and see how much this affects the bounce height; see where you get the
best effects. Try it at best key or RV setting, and at other keys/settings.
Also, placing the speaker directly on the table (without the 3-snap and 6-
snap under it) should reduce the vibration a little, but you can try it to see
the difference.
Try removing the 0.1mF capacitor (C2), and see how the sounds and
bounce effects change. Next, remove the sound energy demonstration
container from the speaker and instead lay your hand on it for the best
setting, you can feel the speaker vibrate.
Don’t eat anything you placed into the sound energy demonstration
container.
The bouncing salt/
glitter/balls show
that sound has
energy! Typically the
E keys and the keys
near them give the
best effects, but your
results may vary.
Lay the speaker on the extra 3-snap
and 6-snap wires, to elevate it. Be
sure speaker lays flat.
SCC-350_Manual_Part_B.qxp 7/25/14 2:06 PM Page 43