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Posts tagged Door

Electronics Circuit Refrigerator Door Alarm

Electronics Circuit Refrigerator Door Alarm Parts: R1______________10K 1/4W Resistor R2_____________Photo resistor (any type) R3_______________2M2 1/4W Resistor R4_______________1M 1/4W Resistor C1______________10µF 25V Electrolytic Capacitor C2_____________100nF 63V Polyester Capacitor D1____________1N4148 75V 150mA Diode IC1,IC2_________7555 or TS555CN CMos Timer ICs BZ1___________Piezo sounder B1____________3V Battery

ptc speaker protection

ptc speaker protection

HA1388 Schematic audio amplifier 18w

HA1388 Schematic audio amplifier

NE5534

NE5534 NE5534 fot High Quality Audio Mixer CIRCUIT

15W Amplifiers Audio using LA4480 circuit board

Amplifiers Audio using LA4480 circuit board

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