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Archives for March, 2010

1000 mW Audio Amplifier Circuit using LA4190

1000 mW Audio Amplifier Circuit using LA4190

Transformerless power supply design. Part : 2

Transformerless power supply design Transformerless power supply design 5V Transformerless power supply design using 7805 Transformerless power supply design This circuit is a small +5V power supply. … and variable power supply circuit of 12 volts using IC 7805 and not any operational amplifier. Transformerless power supply design

Tube Amp using EL34

Tube Amp using EL34 35W Electronic Parts R1=470K 0,5W R13-21=820K 0.5W R12-23= 180K 0.5W R2-5= 2K2 0.5W R14-22=5K6  0.5W R3=150K 0.5W R15-20= 680K 0.5W R4= 220K 0.5W R16-19=100K 0.5W R6-10= 56K 0.5W R17-18=3K3 1W R7=3.9K 0.5W R24=470R  2W R8= 220R  0.5W R9= 1M  0.5W R11= 39K 1W C2=220pF 600v C8-9=0.1uF 630V C10-14=0.47uF 630V C4-5=16uF 550V […]

Headphone amplifier ic

Headphone amplifier ic circuit using TL072, BD139, BD140

LCD Monitor Schematics – What’s The Best Place For Electronic Schematics & Circuit Board Diagrams?

Dave L asked: I need the complete schematics of LCD monitors to be able to repair them.

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