1.5 Watt FM Transmitter Presented here is a 1.5 Watt FM Transmitter. A transmitter is an installation in which electrical oscillations are generated by...
This article describes a stereo FM transmitter works. The principle is simple there, we recommend that combine text carefully read the complete schemat...
This transmitter uses a 5089 DTMF generator chip and a keypad to generate DTMF signals and modulate them on an IR light beam from an IR LED. Xtal is a ...
The FM transmitter circuit here works in the broadcast band 88 to 108MHz, and can be used to broadcast audio signals for remote listening. The output p...
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 ...
This 49-MHz FM transmitter consists of an audio amplifier, a low-pass filter, three RF stages, and a regulated-dc power supply. The output is about 16 ...
This 2 meter 144 MHz fox hunt transmitter is used in amateur competitions where a hidden transmitter is to be hunted using mostly homebrewed receivers ...
Next is an FM transmitter schematic presentation. Schematic showing below. In order to get a little tuning coil can put 4-40pF trimmer capacitor (optio...
The vacuum tube is still alive and useful in some applications, as in this CW transmitter. The circuit was built in old-fashioned breadboard style on a...
3V FM TRANSMITTERS CIRCUIT DIAGRAM Place the transmitter about 10 feet from a FM radio. Set the radio to somewhere about 89 - 90 MHz. Walk back tothe F...
The 1 watt 20 meter QRP transmitter with VXO. This is a nice QRP transmitter that can be used in combination of one of the simple receivers. Normally t...
PLL Stereo FM Transmitter The circuit shown here is of a good Stereo FM transmitter that can transmit high quality signals up to a range of 70 feet. Th...
TECHNICAL CHARACTERISTICS: Tendency of catering: 12V/1A DC Frequency of emission at AM: ~27MHz Force of expense: 2,5W Materially: The resistances are 1...
This article describes the AM transmitter CIRCUIT (2N3439). The content is very simple, very helpful. Components in this article can help you understan...
Using a Motorola MC2833 one-chip FM transmitter, a few support components, and an MPF6660 FET RF amp, this transmitter delivers about 3 W into a 50- lo...
TDC1808/1809 RF wireless transmitter / receiver module-specific can easily form a variety of wireless remote control device.TDC1808 shape pin map.TDC18...
This small power FM transmitter can transmit more than 1 km in good conditions. The modulation can be made so much with a microphone or audio source. C...
Description. Here is the circuit diagram of an easy to build long range AM transmitter circuit based on three transistors.With correct tuning and a mat...
BIAS COMS PLL transmitter This schematic originally comes from Bias Comms and was originally intended for use in combination with a BGY33 or BGY133 mod...
This schematic for an experimental data transmitter uses optical fibers and a laser diode. Trans-mission frequency of the free-running oscillator is ap...
Figure 1 The circuit was constructed using a few components that is powered by a 9 V battery for sensing the presence of bugs transmitting within the f...
As shown in Figure 1, V1 and related resistive and capacitive components form the first level audio amplifier circuit which provides sufficient strengt...
Power for the circuit is supplied by B1, a 9-V battery. Two sections of a 4011 NAND gate, U1-c and U1-d, are used as part of a radio-frequency (RE) osc...
This FM transmitter circuit uses four radio frequency stages: a VHF oscillator built around transistor BF494 (T1), a preamplifier built around transist...
Circuit diagram 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...
In the visible-light transmitter, a 7805 volt-age regulator is connected in a variable-voltage configuration, and an audio signal is fed to the common ...
The following shows the FM transmitter (15 watts) circuits. The circuit is very simple, and very practical. Recommend Duokanjibian The schematic in ord...
The figure shows the FM transmitter 2km circuit. The circuit is divided into three phases, which are the shock, frequency and power amplification. V1, ...
This transmitter can be used for a variety of purposes. An INS8048L microprocessor generates various codes depending on keypad presses. The codes are m...
This article describes the Small AM Transmitter Circuit Schematic Diagram (AD7918BRUZ). The content is very simple, very helpful. Components in this ar...
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