Elenco Electronics Snap Circuits - Rhythm Swinging Meter; Police Car Sound with Whistle Chip; Fire Engine Sound with Whistle Chip; Ambulance Sound with Whistle Chip

Project #508
OBJECTIVE: Use the meter with the alarm IC.
Connect 3-snap wires to terminals E & F, and C & D. Turn on the
switch (S1) and the meter (M2) swings rhythmically. You should hear
a machine gun sound generated by the alarm IC (U2).
Rhythm Swinging
Meter
OBJECTIVE:
Show variations of project 508.
Fire Engine
Sound with
Whistle Chip
Project #510
OBJECTIVE:
Show variations of project 508.
Ambulance
Sound with
Whistle Chip
Project #511
Connect 3-wire snaps to terminals C & D and
A & B. Connect the whistle chip (WC) across
points G & H. You should hear a fire engine
sound generated by the alarm IC (U2).
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Connect a jumper wire to terminals B & H.
Connect a 3-wire snap to terminals C & D.
Connect the whistle chip (WC) across points
G & H. You should hear an ambulance sound
generated by the alarm IC (U2).
OBJECTIVE:
Show variations of project 508.
Police Car
Sound with
Whistle Chip
Project #509
Use the circuit in project 508. Connect the
whistle chip (WC) to points G & H. Connect a
3-wire snap to the terminals C & D and turn on
the switch (S1).