Daytime Light Police Car; Daytime Light Machine Gun; Daytime Light Fire Engine; Daytime Light Ambulance - Elenco Electronics Snap Circuits Instruction Manual

Project #392
Project #393
Daytime Light
Machine Gun
OBJECTIVE: To build a light-sensitive
machine gun sound.
Use the circuit from project 392. Connect the
jumper wire to points B & C. The sound of a
machine gun will be heard when the room is
dark.
OBJECTIVE: To build a light-sensitive police car sound.
As long as the photo resistor (RP) is exposed to light, the alarm IC
(U2) outputs a signal to the speaker (SP). Block the light with your
hand and the sound will stop.
Project #394
Daytime Light
Fire Engine
OBJECTIVE: To build a light-sensitive fire
engine sound.
Use the circuit from project 392. Connect the
jumper wire to points A & B for a fire engine
sound.
Daytime Light
Police Car
Project #395
Daytime Light
Ambulance
OBJECTIVE: To build a light-sensitive
ambulance sound.
Use the circuit from project 392. Connect the
jumper wire to points A & D for an ambulance
sound.
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