FM Receiver
550 Per Piece
1 Piece (MOQ)
AM & FM Radio Receiver
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Scientech TechBooks are compact and user friendly learning platforms to provide a modern, portable, comprehensive and practical way to learn Technology. Each TechBook is provided with detailed Multimedia Product Tutorial which covers basic theory, step by step procedure to conduct the experiment and other useful information. Details : Scientech 2661A AM / FM Radio Receiver is a comprehensive learning solution specifically designed to study and understand the working principle and basic operation of both types of superheterodyne radio receivers; AM Radio Receiver and FM Radio Receiver. The TechBook provides the conceptual and step by step understanding of a superheterodyne receiver system through measurement of voltages and observation of waveforms at various test points. Block wise modular organization of circuit function with supporting technical information makes it easy to understand the process of AM / FM reception and demodulation. The exercises conceived to provide a practical approach to the subjects enable a deep analysis of the subjects and will guide the students to understand each function. Scientech 2661A, AM / FM Radio Receiver is an ideal platform to enhance education, training, skills & development amongst our young minds. Product Features : A self contained TechBook Functional blocks with self explanatory waveforms and technical details indicated on board On board Tuner provided for tuning the AM/FM transmitting stations Interconnections between different section using 2mm patch cords More than 50 test points for waveform observation and analysis 12 Switched faults for troubleshooting at different functional blocks Telescopic antenna for reception of AM/FM signal On board audio jack provided for Earphone connection On board Speaker provided for audio communication Product Tutorial
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Battery FM Receiver
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10 Pieces Piece (MOQ)
We have established a reputation of trust and quality of manufacturers, exporters and suppliers of Battery FM Receivers, based in India. These Battery FM Receivers we offer are manufactured using superior quality components and transponders to ensure they are able to receive without distortion and disruption. These Battery FM Receivers are known for their high quality reception and durability. Details : Helped by our flourishing business processes, we are able to offer a perfect quality compilation of FM Receiver With Battery. The presented product is designed with the aid of world-class quality material and sophisticated techniques in tandem to set industry guidelines. Offered product is made accessible in different stipulations of sizes and shapes for our patron to select from. Features : Easy to use Rugged construction Durable nature
Am Fm Radio Receiver
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We manufacture am fm radio receiver using cutting-edge technologies. The am/fm radio trainer kit has components placed over their corresponding symbols in the schematic drawing on the surface of the printed circuit board thereby maximizing the learning process and explain theory of operation of the radios. The radios are constructed in sections with each section being completely tested before moving on to the next, reducing difficult troubleshooting associated with some other kits. Trainer includes a high quality printed circuit board with schematic printed on the surface. The manual is easy to understand and assumes no previous electronics knowledge. The trainer kit of am fm radio receivers form a superheterodyne receiver of standard am (amplitude modulation) and fm (frequency modulated) broadcast frequencies. objective to study am radio receiverto study fm radio receiver nine sections audio amplifier circuitam detector circuit am if circuit am amplifier circuit am mixer and oscillator circuit fm detector circuit first fm if amplifier circuit second fm if amplifier circuit fm radio frequency stages. » am radio sectiontuning range520 khz - 1620 khzif frequency455 khztracking± 3 db from 700 khz to 1400 khz10 db signal to noise at 200 microvolt typical »fm radio sectiontuning range588 mhz - 108 mhzif frequency10.7 mhztracking± 5 db from 90 mhz to 106 mhzdetectoruses ratio detector and full time auto frequency control10 db signal to noise at 200 microvolt typical
FM Receiver
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FM Receiver is a compact tunable lying in the range of 88 to 108 MHz with audio amplifier. The FM Receiver described here uses very economical and high quality receiver IC. This receiver covers FM range 88MHz to 108MHz. The IC integrates the following functions : Input mixer with AGC IF amplifier and local oscillator FM Detector AF Preamplifier The detailed circuit diagram is shown in figure.About the Circuit : The circuit is divided into two parts as FM section and Audio Amplifier section.FM Section : The FM section consists of an FM tuner, an FM-IF amplifier and the detector. The FM frequency is selected by FM trimmer C18/C19. The IF tuned circuit provides high selectivity to the receiver. Antenna is directly coupled through capacitor C14 to pin1 of IC2. IC2 contains superheterodyne receiver. The FM section receives the incoming signal via a wideband antenna circuit and pin1. From there, the signal is amplified and then applied to a mixer via a parallel- tuned circuit. In the mixer, the signal is mixed with an oscillator signal, which is also controlled by a parallel-tuned circuit. The oscillator is combined with an automatic frequency control circuit- AFC - which only needs an external buffer capacitor. The output of the mixer is applied to an external filter and from there to the first (internal) IF amplifier. From there, it is again filtered externally and then applied to the second IF amplifier. Finally, the signal is demodulated in an FM discriminator. The resulting audio frequency signal is output via pin13. The amplified RF signal is applied to a mixer together with the output of an appropriate oscillator. The mixer is followed by IF filters and an IF amplifier. The output of the IF amplifier controls the automatic gain control - AGC - circuit. The AGC holds the output of the IF amplifier and mixer substantially constant in spite of variations in the RF signal. The output of the IF amplifier is demodulated by a suitable detector and the consequent audio signal is applied to pin13. AF Section :The AF section consists of IC1, which is low power audio amplifier IC specially designed to deliver 1 to 8W output power at 4W load at 12V input supply. The output of this amplifier exhibits low distortion and low noise. The input is fed at pin3 of IC1 through variable pot P1 to control the input signals to the amplifier. The output is taken from pin7 of the same amplifier.PCB Fabrication :All the inductors are hand-made. The coils are wound closely so that there is no gap between the turns. The end of the coils L1/L2/L3 should be scratched off with the help of a blade or an iron scrapper so that the enameled cover is removed. After winding these coils, you may find it difficult to wind the IFT but it becomes easy after gaining some experience. The construction details of the inductors and IFT are given in TABLE.
FM Receiver
240 Per Piece
50 Piece (MOQ)
FM Tour Guide System Receivers
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Flexible and simple. The PPA Select FM receiver features easy-to-use, seek-button channel selection with access to 17 pre-set wideband frequencies between 72-76 MHz. Compatible with the following Williams Sound transmitters: PPA T46, PPA T45, PPA T45NET, PPA T27. Digitally synthesized for even greater audio clarity and stability. A versatile 3.5mm stereo/mono jack allows for a variety of earphone and headphone options, and is neckloop/telecoil-equipped-hearing-aid compatible. NOTE: The PPA Select Receiver requires a transmitter operating on 72-76 MHz. The PPA Select is approved by the FCC for operation in U.S. Markets. The receiver cannot be used in all countries. Check with your government´s radio regulations for 72-76 MHz operation.
FM Receiver
250 Per Piece
FM Receiver
1,007 Per Piece
1 Piece (MOQ)
AM/FM Radio Receiver with 5 Faults Creating Facility SA-934
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Product Category : Audio, Video, Radio, Television Lab Trainer (Series : 200-D)Product Name : AM/FM Radio Receiver with (5) Faults Creating FacilityModel No.: SA-934Product Details : The trainer intended to demonstrate the working and troubleshooting of AM MW Band and FM superheterodyne Radio Receiver circuit and its signal analysis at various sections using IC CD 1019CP or equivalant with AM MW & FM Band selector switch. AM Radio Receiver : This has IC version with internal blocks include RF Tuning, Mixer local Oscillator, IF Amplifiers stages, Diode Detector, AGC, Audio Pre-Amplifier, Driver, Power Amplifier and Speaker wired as AM Superheterodyne Radio Receiver circuit. All sections are separate to be interconnect by patch cords. Antenna Tuning by PVC 2J/2X Gang capacitor. MW Antenna and oscillator coil. AM Radio MW Band 550KHz-1650KHz. Radio signals by local AM MW Band Radio Station. Facility to connect external AM Input from AM generator in MW Band. RF Section Bandwidth 550KHz-1650KHz. Intermediate Frequency (IF) 455KHz. Audio section Bandwidth 500Hz-5KHz. Audio Amplifier 3W. Speaker 4 ohms. Volume control. Station Tuning control. FM Radio receiver : This uses FM IC as RF Tuning, Mixer local oscillator, IF Amplifiers stages, Discriminator, AGC, Audio Pre-Amplifier, Driver, Power Amplifier and Speaker wired as FM Radio Receiver circuit. Antenna Tuning by FM Gang capacitor. FM Antenna and oscillator coil. FM Receiver IC Based. Audio Amplifier based on IC810. FM Radio Band 88MHz-108MHz. Radio signals by local FM Band Radio Station. Facility to connect external FM Input from FM generator. RF Section Bandwidth 88MHz-108MHz. Intermediate Frequency (IF) 10.7MHz. Audio section Bandwidth 500Hz-10KHz. Audio Amplifier 3W. Speaker 4 ohms. Volume control. Station Tuning control. Faults created by Switches in UP-Normal and Down-Faulty condition. Facility to study all sections characteristics. Facility to create 7 Faults on Power supply, RF Section, Mixer stage , IF Amplifier stage, Detector diode and Audio Amplifier stages. Discrete level circuit. Built-in fixed DC +12V/500mA Power supply and maximum test point for signal and voltage analysis. Objectives : For AM Superhetrodyne MW Band Radio Receiver To study principle of AM Superhetrodyne MW Band Radio Receiver. To study Block Diagram & Circuit diagram of AM Superhetrodyne MW Band Radio Receiver. To Study functions of Tuning & Mixer, IF Amplifiers, Diode Detector, AGC and Audio Amplifier sections of AM Radio Receiver. To study the signal analysis at the different sections of AM Radio Receiver. To observe and note the reproduced Audio signal for the selected Radio frequency input. To Study the Radio Characteristics Selectivity, Sensitivity & fidelity of AM Radio receiver. For FM Superhetrodyne Radio Receiver To study principle of FM Radio Receiver. To study circuit of FM Radio Receiver. To study different sections of FM Radio Receiver using IC. To study the signal analysis at the different sections of FM Radio Receiver. To Study the Audio Amplifier section. To observe and note the reproduced Audio signal for the selected Radio frequency input. To study the 7 faults on different sections of AM & FM Radio Receiver. Instruments Required : CRO 20MHz, Digital Multimeter (DMM), AM Generator in MW Band and FM Generator in 88-108MHz Band. Accessories Included : Set of Patch cords and detailed Instruction manual.
FM Receiver
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