Snap Circuits 750-in-1 Manual

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Project #594
OBJECTIVE: To create a pulsing motor circuit.
Pulsing Motor
Turn on the slide switch (S1) and now you have a pulsing motor and
LED’s circuit. Replace the meter (M2) with the 470µF capacitor (C5,
“+” on right) to change the rate the LED’s (D1 & D2) flash.
Project #593
OBJECTIVE: To create a sound circuit.
Noisemaker (III)
Turn the slide switch (S1) on and the speaker (SP) sounds as if a
motor is spinning and an alarm is running. The relay’s (S3) contacts
rapidly open and close the battery connection to the circuit causing the
alarm IC (U2) sound to be different.
!
WARNING: Moving parts. Do not touch the fan or
motor during operation.