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  • Qualcomm Q cell phone

    2016-02-03 13:07:4665

    CDMA 16 pin Qualcomm cellphone specialconnector at the mobile phone Pin Signal Description 3,9 GND 5,8 charger in? 12 shorted by R=1k to pins 5,8 in ca...

  • Telephone Guard circuit

    2016-02-03 12:50:2168

    Here is a simple circuit to protect your Telephone, EPBAX, Telephone Modem etc fromlightning dischargeor line spikes. It uses a safety capacitor andGas...

  • Apple Mobile Phone Circuit Diagram (M42C)

    2016-02-03 11:31:5174

    This is a circuit diagram about apple mobile phone....

  • How to build Mobile Phone and iPod Battery Charger Circuit

    2016-02-03 10:24:3285

    Description Using the USB port on your computer to charge your player’s batteries is not always practical. What if you do not have a computer availab...

  • Door Phone Intercom CIRCUIT (LM386)

    2016-02-03 09:24:5187

    This article describes the Door Phone Intercom CIRCUIT (LM386). The content is very simple, very helpful. Components in this article can help you under...

  • The Link Telephone Intercom Every Home Should Have One!

    2016-02-03 07:31:3567

    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...

  • SKY 6200 and others cell phones

    2016-02-03 04:52:0962

    For data/flash cable only 24 pin cellphone unspecified specialconnector at the mobile phone (keyboard DOWN) ? Pin Signal Description 12,19 GND ? shorte...

  • Computer Microphone

    2016-02-03 02:50:0663

    Notes: This circuit was submitted by Lazar Pancic from Yugoslavia. The sound card for a PC generally has a microphone input, speaker output and sometim...

  • Nokia 6600 cell phone internal

    2016-02-03 01:38:4267

    for data/flash cable only 6 pin Nokia 6600 cellphone specialconnector at the mobile phone Pin Number Pin Name Direction Description 1 Gnd 2 Rx 3 MBUS 4...

  • Mobile Cellphone Battery Charger

    2016-02-03 00:57:5064

    Stops charging when battery is full charged, Portable unit Charging of the mobile phone, cellphone battery is a big problem while traveling as power su...

  • Traveler Cellphone Battery Charger (NE555)

    2016-02-03 00:47:41126

    This article describes the Traveler Cellphone Battery Charger (NE555). The principle is very simple, very practical. The circuit components can help yo...

  • Low Noise Balance Microphone Pre-Amp using a TL071

    2016-02-03 00:31:2967

    Simple circuit diagram? which is very low noise. In the circuit diagram in the design of circuits that consist of a combination of differential pairs o...

  • Transistor Soft Musical telephone ringer circuit

    2016-02-02 21:13:2590

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

  • Telephone Ringer Circuit Diagram (NE556)

    2016-02-02 19:46:2470

    Thissimple telephone ringer circuit diagramis using modulated rectangular waves of different time periods, The circuit presented here produces ringing ...

  • FM Telephone Bug circuit (1N4001)

    2016-02-02 19:36:2263

    This article describes the FM Telephone Bug circuit (1N4001). The content is very simple, very helpful. Components in this article can help you underst...

  • Nokia 7650 cell phone internal

    2016-02-02 18:31:2463

    pinout 9 pin Nokia 7650 cellphone specialconnector at the mobile phone Pin Signal Description 1,9 GND 2 Tx 3 Rx 4 MBus 5 Vpp 6 Vbat 8 BSI Source:www.pi...

  • How to build Mobile Cellphone Battery Charger Circuit

    2016-02-02 17:50:5564

    Description Charging of the mobile phone, cellphone battery is a big problem while traveling as power supply source is not generally accessible. If you...

  • Ring Indicator of Telephone Line Circuit by LM555

    2016-02-02 17:06:5269

    Figure 1 The circuit has been designed for telephone apparatus to indicate an incoming call as it rings using an LED for visual indication. BC550 an NP...

  • Microphone mixer (BC558)

    2016-02-02 15:58:5466

    This article describes the Microphone mixer (BC558). The content is very simple, very helpful. Components in this article can help you understand bette...

  • Panasonic X60, X66, X200, X400 cell phones

    2016-02-02 14:15:5263

    full pinout 3 pin stereo jack maleconnector at the mobile phone (2.5 mm handsfree connector used) Pin Signal Description GND GND R Rx L Tx Source:www.p...

  • Nokia 3510, 3510i, 3530, 3590, 3595 cell phones internal

    2016-02-02 13:51:3266

    full pinout 6 pin Nokia 3510 cellphone specialconnector at the mobile phone Pin Number Pin Name 2 GND 3 Vpp 4 RX 5 MBUS 6 Tx Source:www.pinouts.ru Repr...

  • Nokia Cell Phone circuit diagram

    2016-02-02 13:26:0165

    Fixing a cell phone is basically not a difficult thing. All you need is proper equipment, basic knowledge of electronics and of course a manual guide, ...

  • FM Wireless Microphone circuit

    2016-02-02 13:13:2764

    This simple FM wireless microphone transmitter can transmit speech over a short range. It can be used as a simple cordless microphone. The circuit uses...

  • Telephone music on hold interface (LH0032)

    2016-02-02 11:56:2762

    This article describes the Telephone music on hold interface (LH0032). The content is very simple, very helpful. Components in this article can help yo...

  • Computer Microphone (BC547C)

    2016-02-02 10:32:3963

    This article describes a Computer Microphone (BC547C). The content is very simple, very helpful. Components in this article can help you understand bet...

  • Telephone Recorder

    2016-02-02 10:23:0863

    This nifty little circuit lets you record your phone conversations automatically. The device connects to the phone line, your tape recorders microphone...

  • Nokia 3310, 3315, 3330, 3350, 3390, 3410, 5510 cell phones

    2016-02-02 09:18:4767

    for data/flash cable only 4 pin Nokia cellphone specialconnector at the mobile phone Pin Number Pin Name Direction Description 1 GND --- 2 TX --> 3 MBU...

  • Doorphone Intercom CIRCUIT (LM386)

    2016-02-02 08:54:4568

    This article describes the Doorphone Intercom CIRCUIT (LM386). The content is very simple, very helpful. Components in this article can help you unders...

  • Samsung SPH-I330 cell phone

    2016-02-02 08:49:3365

    full pinout 19 pin Philips 630 cellphone specialconnector at the mobile phone Pin Signal Description 1,7,8,18,19 N/C 2 VS? 3,17 GND 4 Vbatt 5 CF 6 Hot ...

  • Facsimile serial and parallel telephone connection

    2016-02-02 08:00:1467

    There are two methods by which a telephone may be connected: serial telephone connection and parallel telephone connection. Either method allows the sa...

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