Data Sheet

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86. Engineering a Space

Battle

Build the circuit shown and press

the switch (62) to hear the sounds

of a nearby space battle. A sound

technician on a movie set might

start a scene with this effect.

87. Sound Technicians

On movie sets and in many play

theaters there are technicians

that monitor the sound and create

effects. Turn ON the switch (62)

and use the press switch (61) to

make different space battle sounds

that could be used during a movie

or play. You are now acting like a

sound technician.

88. Perfect Timing Counts

Turn ON the above circuit with the switch (62). Place one nger close to the touch plate (80). Assume three events are

going to take place exactly 3 seconds apart. Count to three and touch the touch plate (80) to time sound to event one.

Count to three and touch again for event two. Repeat one last time for third event after another three seconds.

89. Changing Power ON Effect

Replace the press switch (61) with the reed switch (83) and place the magnet in position to trigger the reed switch (80).

Turn ON the switch (62). The power up sound should now be different than when the magnet is not on the reed switch.

Note: You may need to

twist the LED (69) heart

attachment to clear the

speaker (93) so it ts

properly.

1st level

2nd level