Elenco Circuit Maker Skill Builder 125 - Manual (Page 13)

Project #3 Super Circuit
Placement
Level
Numbers
This complex circuit is pictured
on the box cover. Use that as a
guide to help in building it.
!
WARNING: Moving parts. Do not touch the
fan or motor during operation. Do not lean
over the motor.
WARNING: Fan may not rise until switch is
released.
!
Circuit Maker Skill Builder 125 uses electronic
blocks that snap onto a clear plastic grid to
build different circuits. These blocks have
different colors and numbers on them so that
you can easily identify them.
Build the circuit shown above by placing all the
parts with a black 1 next to them on the board
first. Then, assemble parts marked with a 2.
Then, assemble parts marked with a 3. Then,
assemble the part marked with a 4 (the alarm
IC (U2), which should be placed directly over
the music IC (U1)). Install two (2) “AA” batteries
(not included) into the battery holder (B1).
Place the glow fan on the motor (M1).
Turn on the slide switch (S1). You hear music
and alarm sounds, and the red LED (D1) lights.
The lamp (L1) may light briefly before the red
LED turns on. Cover the photoresistor (RP) to
change the sound a little.
Push the press switch (S2) to spin the motor
and glow fan. Release the press switch when
the motor is spinning at full speed. The glow fan
should float through the air like a flying saucer.
Be careful not to look directly down on the glow
fan when it is spinning.
If the fan doesn’t fly off, then push and release
the press switch several times rapidly when it is
at full speed.
If the 470mF capacitor (C5) is discharged when
you turn on the slide switch, then the lamp will
light for a few seconds as the circuit charges up
C5. L1 will not light again until C5 is
discharged. To discharge C5, remove it from
the circuit and place it directly on the 4-snap
wire for an instant, then move it back to its
normal spot in the circuit.
-12-
Placement Level Numbers
+
CM-125_Manual_031514.qxp_CM-125_Manual_031514 4/2/14 12:19 PM Page 13