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Project 50
Strobe Effects (III)
Replace the disc in the disc holder with the
one shown here, and repeat projects 46-48.
Observe the strobe effects. At some RV
settings, the rainbow of colors comes into
view.
Project 51
Strobe Effects (IV)
Project 52
Strobe Effects (V)
Project 48
Stable Strobe Effects
Use the circuits from projects 46 and 47,
but add the 0.1µF capacitor (C2) next to
the motor, as shown here. Set the strobe
speed so the patterns are visible, and
see if they look less blurred than before.
The 0.1µF capacitor has no electrical
effect,but it helps to hold the motor in place
better and reduce vibrations. Less motor
vibration makes the disc holder more
stable, and so makes the patterns a little
clearer. See if you can notice a difference.
Project 49
Strobe Effects (II)
Replace the disc in the disc holder with the one
shown here, and repeat projects 46-48. Observe
the strobe effects. To remove a disc from the
holder, use your fingernail, or use a pencil to push
it up from beneath one of the tabs.
When the disc pattern is totally blurred,
it appears to be white. Combining equal
amounts of red, green, and blue makes
white. The LED in the color organ IC
combines red, green, and blue lights to
make white.
Replace the disc in the disc holder with the
one shown here, and repeat projects 46-48.
Observe the strobe effects. With this pattern,
some areas may appear to be moving at
different speeds or directions. Sometimes you
can see all the colors on the disc, but
sometimes you can see all the colors except
blue, which is hidden.
Replace the disc in the disc holder with the
one shown here, and repeat projects 46-48.
Observe the strobe effects. This unusual
pattern produces several amazing displays at
different RV settings.
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