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Posts tagged audio

Stereo Power Amplifier

68W Power Amplifier schematic   68W Stereo Power Amplifier using TR A673, C828, C1213, D438, B560, TIP31 and TIP32

Circuit electronics to determine the humidity of the room

Circuit to determine the humidity is a comparator, which detects the temperature change is very small in relation to the ambient temperature environment. Parts: R1_____________22K Linear Potentiometer (See Notes) R2_____________15K @ 20°C n.t.c. Thermistor (See Notes) R3_____________10K 1/4W Resistor R4,R5,R7,R9____22K 1/4W Resistors R6____________220K 1/4W Resistor R8______________5K 1/2W Trimmer Cermet R10___________680R 1/4W Resistor C1_____________47µF 63V Electrolytic […]

600W amplifying circuit

600W amplifying circuit using LM3886, ZTX450

12v 1A dvd power supply circuit diagram

12v 1A dvd power supply circuit diagram 12v 1A dvd power supply circuit diagram using UC3844AN, STF11NM80 12v 1A dvd power supply circuit diagram It can work over a universal input AC line range 220 VAC and provides a nominal 12V DC output at more then 2A load. 12v 1A dvd power supply circuit diagram

Mini fm radio Transmitter circuit

Mini fm radio Transmitter circuit Mini fm radio Transmitter circuit  using BF199 This small FM transmitter with a range of about 50 meters designed for hoby. With lots of mini-transmitters then you have a comprehensive, action-packed radio program. Due to the power supply via the USB port of a high frequency stability is achieved. Alternatively, […]

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