Follow WeChat Download Audiophile APP Follow the audiophile class related suggestion This article mainly introduces the infrared diode emission circuit diagram (acoustic and optical alarm / TPS604 / wireless headset infrared emission circuit in detail). Wireless Headphones... This article mainly introduces the 315m wireless transmission and reception circuit diagram (wireless transmission / wireless reception circuit diagram in detail). The radio remote control circuit consists of radio ... This article mainly introduces the 1000 meters wireless transmission circuit diagram Daquan (single tube oscillation C8050 / high frequency triode / T630 FM transmission circuit ... The ultrasonic generator consists of two piezoelectric plates and a resonance plate. When a pulse signal is applied to its poles, and its frequency is equal to the natural oscillation of the piezoelectric chip ... In order to improve the communication and information exchange capabilities of modern weapon systems in harsh electromagnetic environments, make full use of the natural secrecy of the laser and reduce the radio frequency ... The NPX I chip has 4 KB of user programmable space, 4 KB of custom ROM, and a 2D LF input stage. Various sensors ... The system selected is the AT89C51 chip of the 51 series. AT89C51 is a programmable erasable read-only storage with 4k byte flashing ... The tire module circuit uses the intelligent embedded sensor MPXY8300 of FREESCALE. This series of sensors integrates the company's ... The following figure is the schematic diagram of the wireless remote control transmitter and receiver circuit. Figure 1 The schematic diagram of the wireless remote control transmitter circuit. Figure 2 The schematic diagram of the wireless remote control receiver circuit. The transducer transmits and receives ultrasonic waves directly below the bottom of the ship to detect targets under the bottom of the ship. The difference is that the former uses fish as the main detection ... The four-way remote control transmitter circuit is mainly composed of a 315MHz wireless data transmission module and a code integrated PT2262. Electronic enthusiasts provide you with a remote control toy car launch circuit, hoping to inspire your creativity. The video signal is firstly amplified by a reverse phase, and then input to the AM modulation stage through the emitter follower; the transmission frequency is generated by the LC high-frequency oscillator and sent to the AM modulation ... BA1404 Stereo FM transmitter circuit (power amplifier, field strength circuit) LM317 AFM transmitter Transmitter circuit made by LM317 2m FM 144M-148M transmitter circuit Near-Earth Telemetry (Morse Code ... This SMD FM transmitter has ... 4W FM transmission circuit diagramTECHNICAL CHARACTERISTICS: Stabilise ... Ultrasonic transmission circuit design of low-voltage power supply Ultrasonic application fields are very broad, such as military sonar technology, industrial nondestructive testing, testing ... Simple FM transmitter circuit 1.5V-10m3V-30m working current: <= 0.5mA24 # enameled wire at 0.6c ... 96Mhz FM transmitter circuit diagram 56M video image transmission circuit diagram The radio frequency transmission circuit generates a frequency of 56MHz through a three-point capacitor, and the image signal is collected by the camera ... On-site signal fiber transmission transmitter circuit Voice modulation optical transmission circuit 50khz frequency light emitting circuit Figure 3 is a practical 50m FM wireless headset transmitter part of the circuit. The circuit is divided into ◆ Overview of circuits Many homes now have televisions The working voltage is 9V, the working current is 2 ~ 6mA, the component parameters are as shown in the figure, BG1 ... The low-power FM transmitting circuit introduced in this article, due to the use of a dedicated transmitting tube, the degree of modulation ... 3-Meter Zender (100-108Mhz / 10-15 ... For an amateur radio enthusiast, getting a good FM transmitting circuit is like picking up ... The working voltage of this circuit is 9V, working ... The author refers to the "simple and easy-made integrated FM speech" published in the 21st issue of "Electronic Newspaper" in 1993 ... BA1404 is one of the few FM transmitting integrated circuits, which makes up for the discrete in the past ... AM audio transmission circuit The following introduces an AM transmitting circuit whose transmitting frequency can be adjusted between 500 and 1600 kHz. The circuit schematic diagram is shown in the figure.
C1, C2, L1, VT2 make up the amplitude modulation oscillator circuit, the oscillation frequency can be adjusted by adjusting the capacitance of C1. The audio signal is amplified by the amplifier circuit composed of VT1 and its peripheral components, and then coupled to the base of VT2 through RP1 and C3, and the carrier generated by the VT2 oscillator is superimposed together to transmit the audio signal through the transmitting antenna. The transmitting antenna can be replaced with a metal wire of about 1m. The component parameters are shown in the figure.
[Photo] AM audio transmission circuit
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