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  • Medium-range transmitter schematics

    2016-04-05 18:06:1361

    This is a medium range transmitter circuit diagram. This is also improved by changing the values of the resistor.Next is the mid-range transmitter sche...

  • 2 km FM transmitter

    2016-04-05 17:16:4892

    Description. With a matching antenna, the FM transmitter circuit shown here can transmit signals up to a range of 2 kilo meters. The transistor Q1 and ...

  • TRANSMITTER_OSCILLOSCOPE_COUPLER_FOR_CB_SIGNALS

    2016-04-05 16:58:2159

    To display an rf signal, connect L1 to the transmitter and points A and B to the vertical plates of the oscilloscope. Adjust L1 for minimum SWR and C3 ...

  • Camera VHF Video Transmitter

    2016-04-05 16:34:3360

    Camera VHF Video Transmitter This is a simple video transmitter that can transmit as far as 50 meters. This video transmitter can be used with the came...

  • 4 Watts FM Transmitter circuit diagram

    2016-04-05 16:23:2169

    The following diagram is the FM transmitter circuit with FM transmision up to 4W. Voltage supply for this circuit is 12-16V with current consumption of...

  • FM Telephone Transmitter

    2016-04-05 15:46:3060

    The FM telephone circuit is built on a PC board that is so small it can easily be fitted inside the housing of a telephone making it an instant pseudo-...

  • Chromel Alumel Thermocouple Current Loop Transmitter (LM135)

    2016-04-05 15:42:0761

    This article describes a Chromel Alumel Thermocouple Current Loop Transmitter (LM135). The content is very simple, very helpful. Components in this art...

  • MN6030B Remote Control Transmitter Circuit

    2016-04-05 15:26:5959

    MN6030B is Panasonic's remote control transmitter IC.It'swidely used in TV, DVD player, audio remote control system, like Panasonic series of color TV ...

  • Long-term FM Transmitter

    2016-04-05 15:21:4660

    Transmitter power output is very low because there is no amplifier increases. Using the RF transmitter power amplifier. By using the 50 ohm antenna, th...

  • wee willy transmitter

    2016-04-05 15:20:5861

    This transmitter uses an electret condenser microphone ( Dick used an Archer 270-90 ). The mic is built right into the front panel of the chassis and t...

  • AM Transmitter circuit diagram

    2016-04-05 15:19:5761

    This is AM transmitter schematic diagram. The circuit is in two halfs, an audio amplifier and an RF oscillator. The oscillator is built around Q1 and a...

  • 4 Transistor Transmitter

    2016-04-05 15:14:3665

    Circuit Diagram Warning: This circuit provides an FM modulated signal with an output power of around 500mW. The input Mic preamp is built around a coup...

  • NEUTRON_COUNTING_TRANSMITTER

    2016-04-05 15:10:4560

    Used with cosmic-ray neutron counter to drive con ventional radiosonde. Signals above preset amplitude trigger subcarrier gate that in turn frequency-m...

  • A_ONE_TRANSISTOR_FM_TRANSMITTER

    2016-04-05 15:00:5859

    The 2N2222 circuitry is a three-element, phase-shift oscillator circuit, designed to yield a 1,000-Hz sine wave. The 1,000-Hz sine wave is then applied...

  • VHF Center Frequency FM Transmitter

    2016-04-05 14:24:3260

    Figure 1 The circuit was designed to function on the middle of the FM band, 98 MHz, since the FM frequency ranges from 88 MHz to 108 MHz. Transmitter –...

  • Long Range FM Transmitter-2

    2016-04-05 13:59:1062

    Part List: R1_______15K R2_______3K9 R3_______220R R4,R5____1K R6,R9____10K R7_______390K C1,C6____0.01uF C2_______4.7pF C3_______0.1uF C4_______6-35pf...

  • Remote FM transmitter circuit Introduction

    2016-04-05 13:08:2064

    This article describes a remote FM transmitter circuit. The circuit is simple, inexpensive, and effective. As long as Duokanjibian The schematic can ma...

  • 7MHz QRP transmitter CIRCUIT (BB204B)

    2016-04-05 12:54:2063

    This article describes the 7MHz QRP transmitter CIRCUIT (BB204B). The content is very simple, very helpful. Components in this article can help you und...

  • 2km TV Transmitter

    2016-04-05 12:16:0063

    2km TV Transmitter Here is a simple TV transmitter. The circuit is simple and really quite crude, but it does include MONO sound. I have not shown the ...

  • 4 - 20mA Loop Transmitter

    2016-04-05 12:15:4362

    View Full Size Image View Original Application Note Transmission of industry standard 4-20mA current loop signals to values and other actuators is a co...

  • AIDS key circuit with Hall transmitter

    2016-04-05 12:00:2560

    It uses magnetic components or Hall element to form a non-contact switch. Figure a shows a simple structure. The circuit shown in Figure b uses the ope...

  • RECEIVER_FOR_50_kHz_FM_OPTICAL_TRANSMITTER

    2016-04-05 10:52:0360

    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...

  • 27255_MC_CONTROL_TRANSMITTER

    2016-04-05 10:28:2559

    Free-running multivibrator keys power amplifier Q4 at audio role. Range is about 1 mile C6 tunes collector of oscillator to crystal frequency.-Texas ln...

  • 2 km FM transmitter

    2016-04-05 10:01:4062

    Description. With a matching antenna, the FM transmitter circuit shown here can transmit signals up to a range of 2 kilo meters. The transistor Q1 and ...

  • WARBLE_TONE_INFRARED_TRANSMITTER

    2016-04-05 09:55:0860

    IC1 and IC2 are LM3909 LED flasher-oscillator devices. IC2 generates a low-frequency square wave that modulates the frequency of IC1. This circuit is u...

  • BA1404 - HI-FI Stereo FM Transmitter 88 - 108 MHz

    2016-04-05 09:42:2765

    BA1404 Stereo FM Transmitter Components: BA1404 IC 38KHz Crystal L1 - 3.5 Turns Variable Coil 1x PCB 1x 38KHz Crystal Oscillator 1x DIP-18 IC Socket 1x...

  • CLASS_C_CB_TRANSMITTER

    2016-04-05 08:54:0659

    Control signal may be tone-modulated a-m, with different tones to control several functions on one frequency.-L. G. Sands, Citizens Radio Revision Spur...

  • FM transmitter bug CIRCUIT (AA119)

    2016-04-05 08:50:0363

    This article describes the FM transmitter bug CIRCUIT (AA119). The content is very simple, very helpful. Components in this article can help you unders...

  • Infrared headphones transmitter circuit

    2016-04-05 07:16:5559

    The transmitter offers a optical link (infrared) for headphones. Three infrared leds (ir) are polirised by T1 current, P1 is used to adjust the current...

  • SATELLITE_RECORDER_AND_TRANSMITTER

    2016-04-05 06:53:4160

    Primary video signal bandwidth is 0 to 240 cps. Direct-record system uses 290-cps sub carrier for reproducing d-c component of signal, giving 50-cps lo...

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