Elenco Upgrade Kit SC500 to SC750 - Manual (Page 45)

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Project #595 Noisemaker
(IV)
OBJECTIVE: To create a sound
circuit.
Project #597
Noisemaker
(VI)
OBJECTIVE: To create a sound circuit.
Project #599
Noisemaker
(VIII)
OBJECTIVE: To create a
sound circuit. OBJECTIVE: To create a
sound circuit.
Project #598
Noisemaker
(VII)
Modify project #598 by removing
the motor (M1). Turn on the slide
switch (S1) and press the press
switch (S2) to hear the new
sound.
Modify the sound of project #599
by replacing the whistle chip
(WC) with the meter (M2, “+”
towards right), use the LOW (or
10mA) meter setting. Turn on the
slide switch (S1) and as the
LED’s flash the meter deflects.
Project #600
Noisemaker
(IX)
OBJECTIVE: To create a
sound circuit.
Project #596
Noisemaker
(V)
Modify the sound of project #595
by adding capacitor C4 across
points A & B (+ of C4 on right).
In this project, you’ll see and hear
the output of the alarm IC (U2). Turn
on the slide switch (S1), the LED’s
(D1 & D2) flash, and the speaker
(SP) sounds as the relay (S3)
chatters. Now press the press
switch (S2) and see what happens
when you remove the relay from the
circuit.
Modify project #596 by replacing the
capacitor C4 with the motor (M1, position it
with the “+” on the left and don’t place the fan
on it). Turn on the slide switch (S1), the
LED’s flash, and the speaker (SP) sounds as
the relay (S3) chatters. Now press the press
switch (S2) removing the relay from the
circuit, providing a constant connection to
the battery (B1). The motor speeds up and
the sound from the speaker is not distorted.
!
WARNING: Moving parts.
Do not touch the fan or
motor during operation. Do
not lean over the motor.
OBJECTIVE: To create a sound circuit.
Modify project #597 replacing
the speaker (SP) with the whistle
chip (WC) and placing the fan
onto the motor (M1). Turn on the
slide switch (S1) and the fan
spins, lights flash, and the relay
(S3) chatters. Now try to launch
the fan by pressing the press
switch (S2) down for about five
seconds and releasing it.