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Electronics >> Schematics Depot >> Audio >> warbler
parts:
all resistors are 5 or 10 percent tolerance, 1/4-watt all capacitors are 10 percent tolerance, rated 35 volts or higher this circuit provides a good siren noise suitable for warding off robot-predators! Change the pitch by adjusting R2, and R5.Return to: Schematics Depot, or Audio Circuits |
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