This is a nice 2 Watts FM transmitter. It has a Super-Sensitive pre-amplification with BC109 and BC177 with more than 100% signal modulation. The job f...
This circuit uses an operational amplifier and a transistor. According to the amplitudeof sound pickup device's output signal, it would do the amplitud...
Easy FM tracking transmitter project . The circuit designed by Tony van Roon, and here the FM tracking transmitter diagram: Components List: R1 = 10K C...
Ultrasonic transmitter and recevier Welcome back to free circuit dot com,today we have the circuit example describes the ultrasonic remote control swit...
BU5814FT1 is a monolithic remote control transmitter integrated circuit.It's widely used in various remote control systems, such as DVD players, televi...
The FM transmitter circuit is using NPN transistor 2N2222. The L1 and C1 producess necessary oscillations Q1.The collector capacity C4, R3 and R4 resis...
This SMD FM transmitter has an operating frequency of about 80 to 115MHz. Under reasonable circumstances you will be able to receive its signal at a di...
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 ...
The modulator and oscillator consist of two NPN transistors. The base of the modulator transistor is driven by a bidirectional current source with the ...
The transmitter consists of an oscillator which drives a high output IR emitting diode. The oscillator is a sJire start multivibrator circuit that prov...
The ultra-simple one-transistor, IR transmitter shown is designed to transmit the sound from any 8 or 16 ohm audio source, such as a TV, radio, or tape...
This article describes the FM radio beacon transmitter circuit. Schematics can combine text look better grasp of this principle. This circuit will tran...
Basically, this circuit is a radio frequency (RF) oscillator that operates around 100 MHz. The audio which is picked up and amplified by the electret m...
The following is a circuit of a simple AM transmitter. This circuit is available in kit form and can work well. This circuit uses a combination of tran...
This article is a remote FM transmitter display. By convention, in order to better grasp the principles you are, we recommend you to combine text read ...
This easy to build FM transmitter bug can transmit voice to exceptionally good range. Tune trimmer to hear the signal to your near radio. Transmitter f...
This circuit has a 10- to 50-mA output for a 1-V input. The minimum operating voltage is about 12 V. The circuit can be used in 4- to 20-mA current-tra...
This infrared transmitter use PWM, pulse width modulation The transmitter is equiped with LM 567, tone decoder circuit. Audio signal ( at least 50mVvv ...
This article is a FM transmitter works show. By convention, in order to better grasp the principles you are, we recommend you to combine text read sche...
This simple infra-red transmitter, where the PPM output from pin 2 of the SL490 is fed to the base of the PNP trasmitter TR1, produces an amplified cur...
TECHNICAL CHARACTERISTICS: Tendency of catering: 220V AC Frequency of emission at FM: 88~108MHz Force of expense: max 45W (without the R3), Materially:...
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...
AM transmitter circuit that can transmit your audios to your backyard.This circuit is designed with limited the power output to match the FCC regulatio...
The following show is a 4 w FM transmitter circuit. The circuit is very simple, and very practical. Recommend Duokanjibian The schematic in order to ma...
The CGO602CESA is a single-chip remote control transmitter integrated circuit which can be used in many kinds of remote control systems such as TV set,...
This transmitter can be used for transmitter hunts, for remote key finding, or for radio telemetry in model rockets. It can be tuned to the two meter b...
Self-modulated low-power oscillator for remote-controlled toys, trains, and garage doors can also be voice-modulated. Range is about 200 yards, and bat...
2.5-watt AM transmitter designed for 118 MHz to 136 MHz operation (courtesy Motorola Semiconductor Products Inc.)....
This circuit is a simple field intensity indicator, which is very sensitive for micro-power signal. Because the circuit is only used for the relative f...
This article describes the Experimental data transmitter for fiber optics CIRCUIT (CD4093). The content is very simple, very helpful. Components in thi...
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