Elenco Snap Circuits Motion - Manual (Page 32)

Build this circuit and mount the merry-go-round base
onto the shaft on the geared motor (GM). Next, place
the color LED (D8) directly across the snaps on the
other battery holder (B1) as shown; the color LED
starts flashing. Now place that battery holder into the
slot in the merry-go-round base. Turn on the slide
switch (S1), and the color LED spins, shining its light
around the room like a lighthouse! For best effects,
turn off or dim the room lights.
Disconnect the color LED from the battery holder when
you are finished, to avoid draining your batteries.
Project 42 Lighthouse
Project 43
Merry-Go-Round
Use the preceding circuit, but replace
the 3-snap wire with the second
battery holder (B1). Now the merry-go-
round spins faster.
-31-
Project 44
Fast Merry-
Go-Round
Use the preceding circuit, but insert
some of the cardboard figures into
the 3 slots on the edge of the merry-
go-round base (the figures may
need to be punched out of a
cardboard sheet).
You may also mount the color LED
(D8) in the other battery holder (B1)
as done in the preceding circuit, to
have a light in the merry-go-round.
Normally connecting
an LED directly to a
battery can damage
the LED, but the LEDs
in this set (D8 & D10)
have internal resistors
to protect them from
incorrect wiring, and
will not be damaged.
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