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Posts tagged +3v

Power supply circuit diagram part : 2

Power supply circuit diagram using LM3886, MUR860 2W

boss audio amplifier

900W boss audio amplifier circuit using TIP3055, BD140, BD139, BC546, BC556

220v Audio vu meter circuit

220v Audio vu meter circuit using TIC226D 220v Audio vu meter circuit using TIC226D

Audio Recorder Circuit

Audio Recorder Circuit using LM324, PIC16F84A, ULN2803A, 1N4148, 2N3904

Reader circuit

Simple Magnetic stripe reader circuit using CVBC337, BD139 Simple Magnetic stripe reader circuit using CVBC337, BD139 R1 68K 1/4W Resistor C1 4n7 630V Ceramic or Polyester Capacitor C2 60-80pF 63V Ceramic Trimmer C3 100F 25V Electrolytic Capacitor Q1 BC337 45V 800mA NPN Transistor Q2 BD139 80V 1.5A NPN Transistor L1 500 turns on a 10mm. […]

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