Elenco Snap Circuits Motion - Manual (Page 79)

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Project 162 Adjustable Light Motor
Build the circuit as shown. Place the spout and ball on the air fountain
(AF), and turn on the slide switch (S1). Use the lever on the adjustable
resistor (RV2) to adjust the brightness of the LEDs in the light motor
(M7) and red/yellow LED (D10), and to adjust the power to the air
fountain. For best effects, dim the room lights. The ball may spin on the
air fountain but may not rise into the air. New batteries are
recommended for this project.
Be sure to try this at very low light levels (where the motor is barely
spinning), as there some cool effects. If the fan on the light motor
doesn’t spin, try giving it a push to get started.
Project 163 Adjustable
Low Speed Fan
Turn on the slide switch (S1) and adjust the fan speed for the light motor
(M7) using the lever on the adjustable resistor (RV2). Initially set RV2
to the top to get the motor started; if the fan does not start even at the
top RV2 setting then give it a push to get started. The fan will only spin
for a small part of RV2's adjustment range. The red/yellow bicolor LED
(D10) will usually light when the fan is not spinning.
New batteries are recommended for this project.
Note: Do not modify this circuit to use both battery holders as this may
reduce the life of your parts.
Place the
spout on top
of the air
fountain and
the ball in the
air flow.
Spout
!
WARNING: Moving parts. Do not
touch the fan during operation.
!
WARNING: Moving parts. Do not
touch the fan during operation.
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