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  • How to build 2 Transistor FM Voice Transmitter

    2016-04-03 20:10:2062

    Warning: Take care with transmitter circuits. It is illegal in most countries to operate radio transmitters without a license. Although only low power ...

  • 902_MHz_CW_TRANSMITTER

    2016-04-03 19:34:2362

    The oscillator, Q1, is a standard overtone circuit. A fifth-overtone crystal, 80.545 MHz, is operated on the seventh overtone, 112.763 MHz. C6 couples ...

  • FM Radio Transmitters With OpAmp CIRCUIT (LM2936Z)

    2016-04-03 19:15:5965

    This article describes the FM Radio Transmitters With OpAmp CIRCUIT (LM2936Z). The content is very simple, very helpful. Components in this article can...

  • Small AM Transmitter Circuit: Using Logic Gates!

    2016-04-03 17:36:2261

    For you who has failed to build? radio transmitters, this circuit worth a try. This circuit uses74HC14hex Schmidt trigger as the oscillator, and you ca...

  • Simple Infra-Red Transmitter/reciever Shematics

    2016-04-03 17:34:2561

    This 1 channel infrared transmitter/receiver remote control is the cheapest and simplest you can find. The transmitter transmits a sequence of pulses o...

  • USB FM Transmitter

    2016-04-03 17:14:5161

    Here is a simple USB FM transmitter that could be used to play audio files from an MP3 player or computer on a standard VHF FM radio by connecting it t...

  • BA5104 remote control transmitter integrated circuit

    2016-04-03 17:05:0682

    The BA5104 is designed as one kind of remote control transmitter integrated circuit that is produced by the Toyo company, and it can be used in various...

  • 80_watt_175_MHz_FM_transmitter_for_125_volt_operation

    2016-04-03 16:58:0664

    80-watt 175 MHz FM transmitter for 12.5-volt operation. Forthe rated output of 80 watts 180 mW of RF drive is required (courtesy MotorolaJ Semiconducto...

  • PCM_FOR_MICROWAVE_TRANSMITTER

    2016-04-03 16:48:4662

    Modern pulse-code modulator can be used for experimentation above lowest legal frequency of 2.3 61ih, such as for satellite and moonbounce communicatio...

  • PAGING_TRANSMITTER

    2016-04-03 16:40:3960

    Feeds single-wire loop surrounding area to be covered. Multivibrator V1-V2 produces carrier frequencies in range from 15 to 30 kc, keyed on and off at ...

  • CB Transmitter

    2016-04-03 16:37:4862

    For the regulation it needs a voltmeter (with needle better) and charge 50W/5W. Connect charge 50W in the place of aerial, with the voltmeter in the ex...

  • Receiver for 50 khz optical transmitter

    2016-04-03 16:30:1367

    For maximum range, the receiver must be designed in the same manner as a radio receiver front end, since the received signals will be similar in both f...

  • LINE POWERED XENON FLASH TRANSMITTER

    2016-04-03 16:27:3960

    This line powered xenon flash circuit drives a small camera type flash tube. It has an optical isolator to allow the flash to be safely triggered from ...

  • BH1417 USB FM Transmitter

    2016-04-03 16:26:3575

    BH1417 USB FM Transmitter Here's BH1417 USB FM Transmitter with built-in PLL circuit. Its low-frequency signal is converted into high-frequency, which ...

  • Precision Current Loop Thermocouple Transmitter

    2016-04-03 15:39:3859

    Current loop analog data transmission is used in industrial environment because of its robustness (good noise immunity), while providing wiring fault d...

  • Spy FM Transmitter Bug

    2016-04-03 15:22:5163

    Here's a tiny one transistor spy FM transmitter bug that operates from a single 1.5V AA battery. Main advantage of this circuit is that power supply is...

  • 15W Transmitter FM circuit diagram

    2016-04-03 15:02:0380

    This is long range FM transmitter with transmision power output is up to 15W. This fm transmitter use power transistor BLY88c as the main transmitter a...

  • Mini FM Transmitter Circuit

    2016-04-03 14:55:1668

    Here is miniFM transmittercircuit. The FM transmitter circuit using 2 transistor. Audio sensitivity is very good when used with an ECM type microphone ...

  • Long-Range IR Transmitter

    2016-04-03 14:54:5861

    Most of the IR remotes work reliably within a range of 5 metres. The circuit complexity increases if you design the IR transmitter for reliable operati...

  • TV Transmitter

    2016-04-03 14:52:4179

    TV Transmitter Description: A VHF band TV transmitter using negative sound modulation and PAL video modulation. This is suitable for countries using TV...

  • Show FM transmitter with two VHF circuit

    2016-04-03 14:41:4062

    The following shows the FM transmitter with two VHF circuits. The circuit is very simple, and very practical. Recommend Duokanjibian The schematic in o...

  • LIGHT_WAVE_VOICE_COMMUNICATION_TRANSMITTER

    2016-04-03 14:26:2361

    This transmitter uses a 741 op amp as a high-gain audio amplifier, which is driven by a rnicro-phone. The output of the 741 is coupled to Q1, which ser...

  • Four Stage FM Transmitter(BF494)

    2016-04-03 14:19:48108

    This article describes the Four Stage FM Transmitter (BF494). The principle is very simple, very practical. The circuit components can help you underst...

  • 4/8-channel V4.2 radio transmitter

    2016-04-03 14:00:5964

    The difference between the 4-channel and the 8-channel version is only the software inside. The 8-channel transmitter has one button (S1-S8) per channe...

  • CARRIER_CURRENT_BABY_ALERT_TRANSMITTER

    2016-04-03 13:52:1661

    The baby-alert transmitter is built around an LM334 quad op amp(U1), two LMC555CM CMOS oscillator/timers(U2 and U3), and a few support components. The ...

  • How to build Medium range transmitter

    2016-04-03 13:36:4560

    This is a medium range transmitter circuit diagram. This is also improved by changing the values of the resistor. Circuit diagram Download this schemat...

  • F_M_F_M_TRANSMITTER

    2016-04-03 13:25:2065

    Output power is 0.5 w at 95 Mc, and range is 400 miles. Provides two channels.-L. E. Peterson, R. L. Howard, and J. R. Winckler, Balloon Gas Monitors C...

  • 1W FM Transmitter

    2016-04-03 13:15:4265

    A very good 1 watt fm transmitter circuit, very easy to build circuit. It has 4 transistors, one is a very stable oscillator, followed by a buffer stag...

  • Am Transmitter electronic circuit diagram

    2016-04-03 11:38:5063

    Notes: It is illegal to operate a radio transmitter without a license in most countries. This ircuit is deliberately limited in power output but will p...

  • WIRELESS_GUITAR_TRANSMITTER

    2016-04-03 11:34:4960

    This transmitter has a built-in distortion effects unit and a touch switch to switch effects off and on. The circuit operates from a 9-V battery. IC1-a...

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