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Posts tagged 4558

op amp Compressor Circuit using IC1 4558

op amp Compressor Circuit using IC1 4558     IC1 4558 J1 Jumper J2 Jumper J3 Jumper Fet: Q1 2N5457 Q2 2N5457

Making Light Dimmer Using remote

Making Light Dimmer Using remote

High voltage op amp

high voltage op amp using UA741 The op-amp UA741 is wired to operate in three frequency ranges- high, medium and low. The circuit is designed such that the circuit produces +/-20 dB boost or attenuation for 50Hz,1KHz and 10Khz by varying POT’s R2. The maximum amplification for any of these bands at maximum supply voltage […]

Touch switch Circuit using 555

Touch switch Circuit using 555

Making Magnetic stripe reader

Making Magnetic stripe reader circuit using BD328 Making Magnetic stripe reader circuit using BD328 Making Magnetic stripe reader R1,R3 1M 1/4W Resistors R2,R4 47K 1/4W Resistors R5 330K 1/4W Resistor R6,R7 68K 1/4W Resistors R8 180R 1/4W Resistor R9 100R 1/4W Resistor C1 470pF 63V Ceramic Capacitor (See Notes) C2 10nF 63V Polyester or Ceramic […]

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