Sound Effect Circuits - Electronic Sound Effects
Schematic / circuit diagram for a tunable transistor electronic organ. Easy to tune the notes that are generated.
An electronic circuit that uses a 556 (Dual timer) IC to produce a two-tone train horn sound effect. Equivalent circuit using two 555 timers (single timers) is given.
This page links to two electronic circuits. Once circuit produces emergency siren noises (police, fire, ambulance), and the other is a chime type sound effect.
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