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  • Panasonic G50, G51, G70, A100, A101, A102, X300 cell phones

    2016-02-13 01:09:4766

    full pinout 4 pin 3.5mm (2.5mm) JACKconnector at the mobile phone cable Pin Signal Description 4 Gnd 3 RxD 1 TxD Source:www.pinouts.ru Reprinted Url Of...

  • Dynamic Microphone Preamp

    2016-02-12 23:59:0375

    Description: A low noise pre-amplifier suitable for amplifying dynamic microphones with 200 to 600 ohm output impedance. Circuit Notes This is a 3 stag...

  • PCD3360 integrated multitone telephone ringer

    2016-02-12 22:33:0067

    ThePCD3360is a CMOS integrated circuit, designed to replace the electro-mechanical bell in telephone sets. It meets most postal requirements, with sele...

  • The Link Telephone Intercom Every Home Should Have One Circu

    2016-02-12 21:33:1565

    The Link circuitry is simple and efficient, employing just two ICs, half a dozen transistors, and a handful of garden variety components. It all runs o...

  • Single User JFET Series Telephone Connection

    2016-02-12 20:17:3782

    A telephone line or telephone circuit (or just line or circuit within the industry) is a single-user circuit on a telephone communication system. Typic...

  • Mobile Phone Portable Charger Circuit For Traveling

    2016-02-12 19:29:3567

    This is a very convenient charger for the traveler,the charger can replenish cell phone batterythree or four times in places where AC power is not avai...

  • Samsung SCH-A2000, SCH-A7500, SCH-A7600 cell phones

    2016-02-12 18:59:4464

    for data/flash cable only 24 pin cellphone unspecified specialconnector at the mobile phone (keypad up) Pin Signal Description 8 Gnd 16 Tx 17 Rx Altern...

  • Cellular Phone calling Detector

    2016-02-12 18:48:1663

    Flashes a LED when detecting an incoming call Powered by one 1.5V cell Circuit diagram Parts: R1 100K 1/4W Resistor R2 3K9 1/4W Resistor R3 1M 1/4W Res...

  • This Wearable Shoe Phone Will Transform You Into James Bond!

    2016-02-12 18:02:2964

    Youre wondering that you can be as cool and calm as James Bond? Would you want to feel the like as the secret agent? If you did, then this wearable sho...

  • Cut telephone line detector CIRCUIT (LM311N)

    2016-02-12 17:43:0275

    This article describes the Cut telephone line detector CIRCUIT (LM311N). The content is very simple, very helpful. Components in this article can help ...

  • Telephone Bell Simulator Circuit

    2016-02-12 17:32:2568

    The basic concept of a telephone line simulator is to allow phones, modems, fax machines, etc. to connect to a simulated telephone line which allows th...

  • PCM2902 Soundcard with Microphone Input

    2016-02-12 13:27:3575

    PCM2902 Soundcard with Microphone Input Many of us have a pair of headphones connected to the output of the computer sound card us either to enjoy song...

  • The Universal Cell Phone Chargers Are On The Way to Your Doo

    2016-02-12 12:29:2963

    The first cell phone has been invented on April 3, 1973 by Martin Cooper, a Motorola researcher and executive and the first commercial citywide cellula...

  • Mobile Phone MP3 Charger Circuit Diagram

    2016-02-12 11:07:3173

    Mobile phone/MP3 switch power supply circuit diagram charger:...

  • Two Transistors Wireless Microphone FM Transmitter Circuit S

    2016-02-12 10:40:26129

    This article describes the Two Transistors Wireless Microphone FM Transmitter Circuit Schematic (LM340T5). The content is very simple, very helpful. Co...

  • Telephone ringing circuits

    2016-02-12 10:30:0686

    Preface Telephone circuit gain always interrest, because telephonesare everywhere and quite often there are old telephoneluying around somewhere. Those...

  • Siemens C62 cell phones

    2016-02-12 10:19:1767

    for data/flash cable only. Standard 3v RS232 interface used. 12 pin Siemens Slim Lumberg cellphone specialconnector at the mobile phone (keypad up) Pin...

  • Introduce the principle of FM Telephone Bug

    2016-02-12 09:55:0663

    This article is Introduce the principle of FM Telephone Bug. The circuit is simple but effective. For you to better grasp the principle, the proposed c...

  • Sanyo 4500, 4700, 5500, 8100, 8200, 8300, 7400 cell phone

    2016-02-12 08:39:0664

    for data/flash cable only 18 pin unspecified cellphone specialconnector at the mobile phone Pins are numbered from Left to Right with keypad up, connec...

  • High Performance MEM Microphone (ADMP441)

    2016-02-12 05:56:4382

    This article describes the High Performance MEM Microphone (ADMP441). The principle is very simple, very practical. The circuit components can help you...

  • Nokia 9500 cell phone internal

    2016-02-12 05:15:2262

    pinout 9 pin Nokia 9500 cellphone specialconnector at the cellular phone Pin Signal Description 1 Tx 2 Rx 4 USB Data ? 5 Vpp 6 MBUS 7 GND 8 USB 5V ? 9 ...

  • Samsung SGH600 , 2100, 2200 cell phones

    2016-02-12 05:01:1265

    full pinout 18 pin Samsung SGH-600 cellphone specialconnector at the cellular phone Pin Name Description Direction 1 GND Ground 2 TxD RS232-Txd OUT 3 R...

  • Cell Phone charger using 1.5V battery

    2016-02-12 01:36:3877

    This article was received from Subham Chatterjee. Thank you! For the cell phone to charge, charger output must be above 4V and can deliver a maximum cu...

  • Spy for Two Telephone Lines

    2016-02-12 01:31:2765

    Spy for Two Telephone Lines ?????? ????? ??????? ? ?????? ?? ????????????? ??????? ?????????? ??? ??? ?????????? ?????? ??? ???? ????? ??????? ??????. ...

  • How to build Soft Musical Telephone Ringer

    2016-02-12 00:37:5766

    Circuit diagram The normal telephone bell, at times (specially during night when one does not want to be disturbed), appears to be quite irritating. Th...

  • Nokia 7610 cell phone internal

    2016-02-12 00:26:5168

    pinout 6 pin Nokia 7610 cellphone specialconnector at the mobile phone Pin Number Pin Name 1 Vpp 2 TX 3 MBUS 4 Rx 5 Gnd Source:www.pinouts.ru Reprinted...

  • Telephone line simulator (BC549)

    2016-02-12 00:14:5770

    This article describes the Telephone line simulator (BC549). The content is very simple, very helpful. Components in this article can help you understa...

  • Solar Based Mobile Phone Charger Circuit

    2016-02-11 23:53:3467

    Here is an perfect solution to harvest Solar energy for charging purpose. This Mobile phoneCharger can replenish almost all types of batteries includin...

  • Assorted telephone circuits (2N3053)

    2016-02-11 21:38:2572

    This article describes the Assorted telephone circuits (2N3053). The content is very simple, very helpful. Components in this article can help you unde...

  • Mobile Phone Universal Charger Electronic Circuit Diagram An

    2016-02-11 18:37:18195

    The charger with nickel cadmium, nickel metal hydride rechargeable lithium ion batteries, converted, and has a discharge function. In 150 ~ 250 V, 40 m...

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