Project 9 big circuit – Elenco Snap Circuits® Deluxe Sound & Light Combo User Manual
Page 35

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!
WARNING:
Moving parts.
Do not touch the fan or
motor during operation. Do
not lean over the motor.
Project 9
Big Circuit
+
This circuit does a lot of
different things at once.
MP3
player
LED Attachments
Black
Clear
Build the circuit as shown. Place either the glow
fan or the light fan on the motor (M1) shaft, so
that it is stable on the little black piece. Place
the clear fiber optic holder on the color LED
(D8) and the black fiber optic holder on the
phototransistor (Q4), then insert the fiber optic
cable between them, but don’t let it lay close to
the fan on the motor. For best performance the
fiber optic cable should stand straight up in the
holders, without bending them. Connect a
music device to the color organ (U22) as
shown, and start music on it. For best effects,
place one of the LED attachments over the light
on the color organ.
Turn on slide switch (S1). Adjust the lever on
the adjustable resistor (RV) and the volume
control on your music device for best sound and
light effects.
Push the press switch (S2) until the motor
reaches full speed, then release it. The fan will
rise into the air like a flying saucer. Be careful
not to look down on the fan when it is spinning.
“Playing the Color Organ”: turn off or
disconnect your music device. Wet your fingers,
and touch them between the point marked “X”,
and “R”, “G”, or “B” in the drawing.
The infrared detector (U24) and 100kW resistor
(R5) are only used to support the other
components.
SCC-350_Manual_Part_A.qxp 7/25/14 2:40 PM Page 35