User Manual

Build the circuit as shown, place of the disco
covers on the disco motor (DM), and turn on
the slide switch (S1). The speaker (SP2) plays
an alarm as the disco cover rotates.
-69-
Project 180
Disco with
Sound (II)
Use the preceding circuit, but
connect points A & B using a 2-
snap wire and a 1-snap wire. The
sound is different now.
Use the preceding circuit, but
remove the connection between
points A & B and instead make a
connection between points B & C.
The sound is different now.
Use the preceding circuit, but
remove the connection between
points B & C and instead make a
connection between points A & D.
The sound is different now.
Use any of the four preceding
circuits, but add one of the LEDs
(D1, D2, or D10) across points E
& F. on level 4 (“+” side to point
E). The LED lights, and the sound
is not as loud now.
Project 181
Disco with
Sound (III)
Project 182
Disco with
Sound (IV)
Project 183
Disco with
Sound (V)
Project 179
Disco with Sound
Disco Cover
SUPPORT BAR