• Keyhole Finder circuit

    Unclassified  2018-02-28 23:19:4359

    This 3 volt Lithium cell operated LED flasher can be used as a key hole finder in darkness. A small lithium button cell can power the circuit more than...

  • Perfboard Circuit Construction

    Unclassified  2018-02-28 23:03:5859

    Here explains the types of general purpose PCBs and the method of circuit construction on aPerf board.Printed circuit board, or PCB, is used to mechani...

  • 7805 Regulator IC Circuits

    Unclassified  2018-02-28 22:45:0059

    Fixed voltage Positive and Negativeregulator ICsare used in circuits to give precise regulated voltage.78 XX seriesregulator IC can handle maximum 1 am...

  • Nokia 9300 Service Manual

    Unclassified  2018-02-28 22:36:2059

    Download Nokia 9300 service manual: - Nokia 9300 general specifications - Nokia 9300 parts lists - Nokia 9300 service software instructions - Service t...

  • Sony PS2 service manual

    Unclassified  2018-02-28 22:28:4559

    Sony PlayStation 2 SCPH-3000 series service manual this manual compiled by first edition of SCPH-30000, 30001, 30002, 30003, 30004 B, B’, C, C’, D ...

  • Time Delay Circuit

    Unclassified  2018-02-28 21:45:4159

    This Time Delay circuit is useful to switch on an AC load such as lamps after thedelayof three minutes. This protects the load frominrush currentandtra...

  • Hulda Clark's Zapper Circuit

    Unclassified  2018-02-28 21:34:3059

    Hulda Clark's Zapper Circuit This is the circuit for Dr. Hulda Clark's Zapper, designed in 2003. The frequency is approximately 30kHz positive offset s...

  • INCREASING OUTPUT CURRENT Circuit

    Unclassified  2018-02-28 21:25:2359

    INCREASING OUTPUT CURRENT Circuit The 555 will deliver 200mA to a load but the chip gets extremely hot (12v supply). The answer is to use a buffer tran...

  • Triangle Waveform Generator circuit with 555

    Unclassified  2018-02-28 21:08:1659

    The circuit is a triangle waveform generator that uses as few parts as possible. A 555 timer IC, 2 resistors and two capacitors make the triangle wave....

  • Current from an AC Capacitor

    Unclassified  2018-02-28 21:05:2359

    When acapacitorand aresistorare connected to AC lines, a constant current can be maintained through the resistor, so long as theRectanceof the capacito...

  • Tunnel diode

    Unclassified  2018-02-28 20:50:2059

    What is a tunnel diode? Dr.Leo Esaki invented a tunnel diode, which is also known as Esaki diode on behalf of its inventor. Its a high conductivity two...

  • Sawtooth Generator Circuit with 741 IC

    Unclassified  2018-02-28 20:47:1459

    This sawtooth generator circuit use 741 IC and is used as a musical sound synthesizer. The sawtooth input signal is continously changed through P2 to a...

  • Snap Action Relay circuit

    Unclassified  2018-02-28 20:43:4659

    When aRelay driver circuitis used inSensorbased electronic circuits, false triggering may occurs due to unwanted relay clicking. The input signal level...

  • 2.4GHz coaxial antenna

    Unclassified  2018-02-28 20:33:0759

    Some points about 2.4Ghz coaxial cable antenna for routers and Robotics Vehicles: Radio equipment using the license-free 2.4-GHz ISM (industrial/scient...

  • Electronic Organ Circuit

    Unclassified  2018-02-28 20:00:2859

    This electronic organ circuit is very simple to construct and is basically an emitter-coupled oscillator composed of T2 and T3. An squarewave voltage c...

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