Project #39, Motor-controlled sounds, More motor sounds – Elenco Electronics 202 User Manual

Page 30: More motor sounds (ii), More motor sounds (iii), More motor sounds (iv), Project #40, Project #41, Project #42, Project #43

-29-

Project #39

OBJECTIVE: To show how motion can trigger electronic
circuits.

This circuit is controlled by spinning the motor (M1) with your hands.
Turn on the slide switch (S1). A police siren is heard and then stops.
Spin the motor and it will play again. Note, however, that music can be
heard faintly in the background of the siren.

Motor-controlled Sounds

Project #40

More Motor

Sounds

OBJECTIVE: To show how
motion can trigger electronic
circuits.

Project #41

More Motor

Sounds (II)

OBJECTIVE: To show how
motion can trigger electronic
circuits.

Project #42

More Motor

Sounds (III)

Project #43

More Motor

Sounds (IV)

Modify the last circuit by
connecting points X & Y. The
circuit works the same way but
now it sounds like a machine
gun.

Now remove the connection
between X & Y and then make a
connection between T & U. The
circuit works the same way but
now it sounds like a fire engine.

Now remove the connection
between T & U and then make a
connection between U & Z. The
circuit works the same way but
now it sounds like an
ambulance.

Now remove the connections
between U & Z and between V &
W, then make a connection
between T & U. The circuit
works the same way but now it
sounds like a familiar song but
with static.