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  • Insect repellent device using ic 4047

    2018-01-24 22:53:5961

    This is a small circuit insect repellent, mosquitoes and birds, or other methods to produce high frequency audio signals. To interfere with the hearing...

  • Regulator 15V 400mA by 748 and 2N3055

    2018-01-24 22:34:3359

    Regulator 15V 400mA by 748 and 2N3055 Today try come to see linear regulator 15volt 400mA Circuit. It is use IC op-amp IC748 perform control Voltage Re...

  • DC Regulator supply 15V non transformer

    2018-01-24 22:32:2459

    Friends at dont like large-sized of a transformer. I begs for to advise 15VDC regulator power supply can give the trend current get low about 80mA not ...

  • Electronics Attenuator electronic circuit diagram

    2018-01-24 22:13:2959

    Two low voltage, low power zeners are used to control electronically the level of an audio signal. The attenuation range is from 6 to 58dB for an input...

  • 50 ohm driver circuit

    2018-01-24 22:12:1359

    When you are connected to buffer a tester to outside tool, we should have an booster with enough bandwidth and power disposition ability. This circuit ...

  • Boost up current to 8 Amps from a LM2575

    2018-01-24 22:05:3059

    TheLM2575works a regulator only and dont deliver any current to the load. If theregulator switchesON, you find a voltage at the output of it. This make...

  • Sounds train whistle with ic 556

    2018-01-24 21:42:3761

    When pressed Sw1 will train noise emitted through the speakers. Created for use as sound alarms and other.Using the IC 556 is a great circuit. This cir...

  • 13 Volt 20 Amp PSU

    2018-01-24 21:33:0959

    Description: This is a Regulated DC power supply with short circuit protection and with current limiter. Notes: This PSU has been especially designed f...

  • Western music using ic HT82207

    2018-01-24 20:49:3359

    Sounds that you heard in the movie, which is fighting the cowboy, the gun sounds, sound horse this cycle is to be born.Because the IC has already been ...

  • 0-99 counter by IC 4017

    2018-01-24 20:28:3859

    When you want the counter circuit since 0 arrive at 99. I thinks this circuit may on the same wave length you certainly. it uses ICLM4017 decade counte...

  • Real-Time 'Stopwatch'

    2018-01-24 20:22:2760

    This is a simple electronic stopwatch you can use to time an event. I used it when developing a device that needed to accurately measure a time interva...

  • Boosting Regulator Current for IC 78xx by MJ2955

    2018-01-24 20:15:3459

    Normally 78xx series ICs can be output currents for a maximum 1 A, or in the common usage, it is only up to 0.6A. But we need more boost current up, ho...

  • Resonance generators by 4011 CMOS Gate

    2018-01-24 20:07:3859

    This Resonance generators (oscillating sound generator) circuit, designed using CMOS integrated circuit number 4011(CMOS Quad 2-Input NAND Gate). Conta...

  • Negative to positive voltage Supply with LM741

    2018-01-24 19:35:4360

    In sometimes when friends want to modify negative voltage source from the outside is positive voltage. We try to come to see this circuit use op-amp IC...

  • Beeper To Find Short Circuits electronic circuit diagram

    2018-01-24 19:32:5759

    This circuit uses two 741s or equivalent op amp to form a beeper that is used to detect short circuits. This design offers a way to trace resistance in...

  • Laser Communication System

    2018-01-24 19:23:1259

    Description This is a simple Laser communication system. It can transmit and receive signal from any audio device.Communication distance is few meters....

  • Ambulance sirens circuit

    2018-01-24 19:21:4259

    This circuit is a circuit that sounds a siren-like sound of ambulance sirens. This circuit is different to an ambulance siren circuit generally, is to ...

  • Antenna Tuning Unit

    2018-01-24 19:15:3959

    Description: A simple passive (no power required) circuit to match an antenna to a radio receiver. This will be a useful addition to the short wave lis...

  • Interfacing a Toshiba T6963C Equipped GLCD with a PIC Microc

    2018-01-24 19:07:0459

    So you happen to have a GLCD with the Toshiba T6963C display controller and you want to interface it with a PIC and write a driver for it. You've scour...

  • Mini roulette system

    2018-01-24 18:41:1359

    A mini roulette circuit, When the switch S1 the output at pin 1 of the IC1a the voltage is high,The oscillator circuit output IC2b, IC2c work.Clock pul...

  • Treble Boost up using LM741

    2018-01-24 18:32:4059

    If you are a person who is satisfied the treble. This be Treble Boost circuit again interesting circuit. Because of use integrated number circuitCA741t...

  • Electronic Motocycle ignition CDI Honda C-90

    2018-01-24 18:28:0859

    This Circuit is for 4 cylinder motor, Electronic Motocycle ignition for CDI Honda C-90. Use small circuit but good work. SCR 1 TIC106 Switching Compone...

  • PWM Speed Rotation Forard-Reverse and Regenerative Braking

    2018-01-24 18:01:0360

    This is PWM Speed DC motor Rotation circuit. It can Forard-Reverse and Regenerative Braking function. By this circuit use a signal PWM control the spee...

  • Regulator 6V 3W for a Hub Dynamo bicycle

    2018-01-24 17:55:0459

    This is aregulatorfor a 6V/3W bicycle hub generator system. The purpose is to manage the powering of bicycle lights from the hub generator and from rec...

  • Loudspeaker Tutorial

    2018-01-24 17:46:0459

    The most common type of loudspeaker is the MOVING COIL speaker, where a coil of wire is suspended in the magnetic field of a circular magnet.When a spe...

  • 16 key encoder using IC 74C922N

    2018-01-24 17:39:0159

    In the design of theBCD signalcircuit that defined by pressing a key is difficult for a electronics beginner so much. With this circuit so be the simpl...

  • Pre amp ic multi-purpose by NE5532

    2018-01-24 17:32:5459

    This is Pre Amp purpose of Circuit, a circuit that is easy to use and can be used to input various types of up to 4 inputs such as where a microphone t...

  • Ni-Cad Charger for Solar Cell Radio by BD140

    2018-01-24 17:30:4959

    A solar cell radio used a 3V (or two 1.2V) Ni-Cad battery in it. The battery can not be removed. It use a mini jack socket for charging. Its quiet diff...

  • Warn the heat in an automobile

    2018-01-24 16:49:0259

    This circuit sets up in itsautomobilewill perform to warn give testimony know before your car is will born the heat too much. By use main part electron...

  • NOR Gates Tutorial

    2018-01-24 16:37:5259

    Before reading this page read the one on LOGIC GATES. The NOR gate has two or more inputs and one output. The output voltage goes low only when one or ...

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