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Posts tagged 音频,

200W audio amplifier circuit diagram using TR and ic TDA2030

200W audio amplifier circuit diagram using TR and ic TDA2030

HA13108 Schematic audio amplifier

HA13108 Schematic audio amplifier

circuit breaker tutorial

heavenseyes98 asked: Friends RCA Tv Problem…? Ok, first of all I’m a huge tinker person. So far everything big or small appliances (mostly computers, microwaves, washers, dryers) that quit working, I tinker with and I get them running again. I’ve only tried fixing one TV but it had something wrong with the diode and I […]

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

Scoreboard circuit

Scoreboard circuit using 7447, 74192

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