Elenco Projects 306-511 - Manual (Page 51)

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OBJECTIVE: To create the sound of a cat.
Set the adjustable resistor (RV) to the far left. Press and release the switch (S2). You
should hear the sound of a cat from the speaker (SP). Now adjust the resistor and
hear the different sounds.
Electronic Cat
Project #458
OBJECTIVE: Show variations of project #458.
Electronic Cat (II)
Project #459
Use the circuit in project #458. Connect the whistle chip (WC) across points A & B.
Press and release the the switch (S2). You hear sound from the whistle chip and
speaker (SP). Adjust the resistor (RV) and hear the different sounds.
Project #460
OBJECTIVE: Show variations of project #458.
Electronic Cat (III)
Project #461 Project #462
Project #463 Project #464 Project #465
Use the circuit in project #458. Using the jumper
wires, connect the whistle chip (WC) across points
B & C. Press and release the switch (S2). Adjust
the resistor (RV) and hear the different sounds.
OBJECTIVE: Show variations of project #458.
Electronic Cat (IV)
Use the circuit in project #458. Connect the whistle
chip (WC) across points C & D. Press and release
the switch (S2). Adjust the resistor (RV) and hear
the different sounds.
OBJECTIVE: Show variations of project #458.
Buzzer Cat
Use the circuit in project #458. Remove the
speaker (SP) and connect the whistle chip (WC)
across points A & B. Press and release the press
switch (S2) to hear the sounds.
OBJECTIVE: Show variations of project #458.
Buzzer Cat (II)
Use the circuit in project #458. Remove the speaker (SP)
and, using the jumper wires, connect the whistle chip (WC)
across points B & C. Press and release the switch (S2).
Adjust the resistor (RV) and hear the different sounds.
OBJECTIVE: Show variations of project #458.
Buzzer Cat (III)
Use the circuit in project #458. Remove the speaker
(SP) and connect the whistle chip (WC) across points
C & D. Press and release the switch (S2). Adjust the
resistor (RV) and hear the different sounds.
OBJECTIVE: Show variations of project #458.
Lazy Cat
Use the circuit in project #458. Replace the 100 μ F
capacitor (C4) with 470 μ F (C5). Repeat projects
#459-464 and hear 7 different sounds.