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  • 3 Band graphic equalizer circuit

    2018-02-27 14:24:3579

    Description. Here is the circuit diagram of a simple 3 band graphic equalizer circuit using a single IC and few components. The IC used here is LF 351 ...

  • Lenovo IdeaCentre A600-Review

    2018-02-27 14:12:3162

    Front View Angle View Side View SleekSexy in design-thats whatLenovo IdeaCentre A600is @ first look. This revolutionary desktop in the age of tablets a...

  • Logic State Indicator

    2018-02-27 13:56:1866

    Here is a simple logic state indicator to test whether the output of digital IC is in logic 1 or 0. The Bicolor LED lights Green when the logic state i...

  • Nokia N73 Service Manual

    2018-02-27 12:50:4661

    Nokia N73 service manual for level 1 2 the purpose of this document is to help NOKIA service levels 1 and 2 workshop technicians to carry out service t...

  • Sound pressure meter

    2018-02-27 12:44:0064

    Description. Here is a simple circuit that can be used to check the sound levels.The sound pressure meter is vey useful in setting up home theater syst...

  • RF field strength meter circuit

    2018-02-27 12:25:1482

    A sensitive and reliable rf field strength meter is an invaluable instrument in amateur radio and in radio controlled model area. A field strength mete...

  • Mobile incoming call indicator

    2018-02-27 12:07:2761

    Description. This circuit can be used to escape from the nuisance of mobile phone rings when you are at home. This circuit will give a visual indicatio...

  • Monostable or

    2018-02-27 11:49:5764

    Monostable or One Shot or Pulse Extender Circuit When the circuit is turned on, the output is LOW and a brief negative pulse on pin 2 will make the out...

  • Solar Charger Circuit

    2018-02-27 11:37:1563

    Here is a solar charger circuit that is used to charge Lead Acid or Ni-Cd batteries using the solar energy power. The circuit harvests solar energy to ...

  • Delay On Circuit

    2018-02-27 11:33:44101

    Protect yourLCD or Plasma TV with this tiny delay on circuit. TheSMPSbased power supply of these modern electronic devices is vulnerable to spikes in t...

  • FM Module with USB Function

    2018-02-27 11:25:5260

    The FM module with USB function of Vire Silicon.Co Ltd is an excellent miniature FM module with USB input and digital display for functions. It is avai...

  • DEMOSFET-Depletion Enhancement MOSFET

    2018-02-27 11:19:5865

    We know that when the gate is biased negative with respect to the source in an N-channel JFET, the depletion region widths are increased. Theincrease i...

  • Sound Frequency Meter Circuit

    2018-02-27 10:48:3462

    This sound frequency meter circuit is simple to build and can be constructed in a portable format. In can measure frequencies with a minimum level of 1...

  • Low cost amplifer.

    2018-02-27 10:41:5264

    Description. No big deal here! You can make a decent power amplifier using just three transistors. All components used here can be obtained from your e...

  • Electronic Bicycle Horn circuit

    2018-02-27 10:33:1863

    This simple electronic bicycle horn circuit uses only one gate of a 4093 quad 2-input NAND Schmitt trigger, U1, conected in a simple, low frequency, sq...

  • INCREASING OUTPUT PUSH-PULL CURRENT Circuit

    2018-02-27 10:24:0097

    INCREASING OUTPUT PUSH-PULL CURRENT Circuit Some 555's do not swing rail-to-rail when 200mA is being delivered and the chip gets very hot when trying t...

  • Pachisi Game Circuit

    2018-02-27 10:21:5666

    Pachisi game is designed for two persons. Each player has one figurine; the figurines are found in the early game on positions indicated by arrows. The...

  • Folded dipole antenna

    2018-02-27 10:10:0372

    Another common place one can see dipoles is as antennas for the FM band these are folded dipoles. The tips of the antenna are folded back until they al...

  • Magnetic field meter circuit

    2018-02-27 09:35:2662

    These days when electronic circuits can be found almost anywhere, there is, some people fear*, a different kind of environmental pollution. They call i...

  • Magnetic Levitation Circuit

    2018-02-27 09:00:1561

    This is a simple magnetic levitation circuit which suspends objects a set distance below an electromagnet. The physics behind it is to simply provide a...

  • Charger On Demand

    2018-02-27 08:46:2163

    ThisAutomatic Battery chargerturnsOnonly when the batterydemandscharging current. It can be used to charge 12 Volt Lead Acid or Tubular batteries .The ...

  • Electronic Mail Box circuit

    2018-02-27 08:44:2662

    This Electronic Mail Box circuit generates music intimating the arrival of mail.. The circuit uses a high bright White LED and an LDR to detect the arr...

  • AUTOMATIC CURTAIN CLOSER Circuit

    2018-02-27 08:22:0163

    AUTOMATIC CURTAIN CLOSER Circuit This circuit uses a mixture of transistors, an IC and a relay and is used to automatically open and close a pair of cu...

  • Electronic mosquito circuit

    2018-02-27 08:17:1562

    The circuit behaves like a true mosquito: once the light dims, the mosquito starts an annoying buzz. When its light again it becomes mute, so that, as ...

  • 12 V High current regulator

    2018-02-27 07:58:1160

    Description. This voltage regulator circuit can deliver up to 3A at 12V output voltage. The circuit can be employed on occasions when a current of more...

  • FET applications

    2018-02-27 07:49:2964

    FET has a very high input impedance (100 Mega ohm in case of JFETs and 104to 109Mega Ohm in case of MOSFETs), the major shortcomings of an ordinary tra...

  • Vacuum tube diodes

    2018-02-27 07:49:0365

    Vacuum Diodes-Applications and Construction The simplest form of the electron tube for the production and control of free electrons is a Vacuum diode. ...

  • WAILING SIREN Circuit

    2018-02-27 07:46:5261

    WAILING SIREN Circuit By pressing the button, the wailing sound increases. Releasing the button decreases the wailing. The circuit automatically turns ...

  • 12V 15A voltage regulator

    2018-02-27 07:00:0864

    Description. Here is the circuit diagram of a powerful 12V regulator that can deliver up to 15 A of current.The common voltage regulator IC 7812(IC1) i...

  • UUS 65

    2018-02-27 06:31:4964

    A basic UUS 65 73 MHz fm transmitter circuit schematic which can be used as UUS oscillator with no explanation 65 73 MHz transmitter ( oscillator ) cir...

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