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Posts tagged simple alarm 12c509

Simple Alarm Circuit using 12C509

alarm circuit diagrams Simple Alarm Circuit using 12C509, 2N7000, 78L05

Digital volume control using DS1669

This digital volume control has no pot to wear out and introduces almost no noise in the circuit. Instead, the volume is controlled by pressing UP and DOWN Digital volume control using DS1669

short circuit sound effect

short circuit sound effect using 2N3904, 2N3906

Audio Amplifier Circuit using STK4311

Audio Amplifier Circuit Audio Amplifier Circuit using STK4311

7805 schema

7805 schema 7805 schema for 5v using IC 7805 MA 7805 7805 schema 7805 schema

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