Loud Siren, KIT - Requires Assembly

Electronic KITSKU: KIT_31

Price:
$ 12.49

Description

Circuit designed around a dual op-amp connected as oscillator and driver. Oscillator is off until you press the switch, then a rising tone is produced until a steady value is reached. If switch is released the tone starts dropping until it cuts off. Runs on 9V battery (not supplied). Speaker and switch supplied. PCB size : 2" x 0.75" x 0.5".

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