Push the switch (S2) to light the
lamp (L4) and spin the motor (M1).
Notice how the lamp gets a little
less bright as the motor speeds
up.
Project 12
Light & Motion
Project 13
Light Dimmer
Use the preceding circuit, but
remove the glow fan from the
motor (M1). Push the switch,
and watch how the lamp
starts out bright, but gets dim
as the motor speeds up.
Next, hold the motor top with
your fingers so it can’t spin,
then push the switch and see
how bright the lamp is.
Project 14
Limiter
Push the switch (S2) and you
hear the horn (W1), but the
lamp (L4) will not light and the
motor (M1) will not spin.
The lamp (L4) lights and the motor (M1) starts
spinning when you install the last 3-snap wire.
Push the switch (S2) to bypass the lamp and make
the fan speed up.
You can swap the locations of the lamp and motor to
make a lamp with 2 brightness levels, but be careful
not to touch the fan when pressing the switch.
Project 11
Two-Speed Fan
Install this piece last
WARNING:
Moving parts.
Do not touch the motor or
fan during operation. Do not
lean over the motor. Fan may not
rise until switch is released. Do not
launch fan at people, animals, or
objects. Eye protection is
recommended.
!
WARNING:
Moving parts.
Do not touch the motor or
fan during operation. Do not
lean over the motor. Fan may not
rise until switch is released. Do not
launch fan at people, animals, or
objects. Eye protection is
recommended.
!
The faster the motor is spinning, the
less electricity it needs. The more
electricity flows, the brighter the lamp
gets. The motor needs the most
electricity when it starts up, making
the lamp brightest. Without the fan,
the motor can spin fast and needs
little electricity, making the lamp dim.
The horn doesn’t need much
electricity, but it limits how much
can flow through the circuit, not
allowing enough to light the lamp
or spin start the motor.
SCP-09_111513.qxp_SCP-09_Instructions 3/14/14 12:46 PM Page 3
