Download Center>Anthology>Not Just Nostalgia -- Collection of Radio Principles, Circuits, Maintenance and Assembly Techniques (II)
Not Just Nostalgia -- Collection of Radio Principles, Circuits, Maintenance and Assembly Techniques (II)
The name of radio is familiar to everyone. Especially for most people in the 70s and 80s, radio may be an unforgettable memory of our happy childhood. I still remember that I want to listen to "Diddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddiddid.
As an electronic engineer, it is necessary to understand the "past and present" of radio. What is the working principle of radio?What is transistor radio, stereo radio, superheterodyne radio......
In view of this, EEWORLD has sorted out: not only nostalgia -- the collection of radio principles, circuits, maintenance, and assembly technology, which is divided into two collections: (1) and (2). The collection has a detailed introduction to radio principles, circuits, maintenance, and assembly, and hopes to help everyone.
Points: 1Type: Application DocumentUploader:Electronics enthusiast IKUpload time: September 29, 2013
Introduction: The book introduces various radio radios, including ore radio, regenerative radio, direct amplification radio, super regenerative detector radio, FM radio, super heterodyne radio and various transmitters, including video transmitter, FM stereo transmitter, FM cordless microphoneAM transmitter, frequency converter, wireless modem and other equipment.This book mainly introduces the working principle, structure, design and manufacturing method of these radio equipment, and even the whole process of how to debug the circuit, and lists the design circuit diagram, component specifications and models and other charts.Because the description is detailed, concise and easy to understand, anyone can successfully make any simple radio equipment according to the steps described in the book. ……
label:Tube radioCircuit diagram of electronic tube recorder
Points: 1Type: Application DocumentUploader:jujuyaya222Upload time: September 19th, 2013
Introduction: Complete Circuit Diagram of Tube Radio/Tube Recorder Do you want to master the overall circuit principle of tube radio?Do you want to know the principle, fault, amateur debugging and maintenance methods of typical models (red light 711 series)?This encyclopedia will meet your requirements.
Points: 1Type: Application DocumentUploader:tiankai001Upload time: January 8, 2013
Introduction: The chip used in this kit is UTC1800 (or D1800), which is a special integrated circuit for radio reception, and D2822 is selected as the power amplifier.The transmitting part of the intercom adopts a two-stage amplification circuit, the first stage is an oscillation and amplification circuit;The second stage is the launch part, which greatly improves the launch efficiency and intercom distance.It has the advantages of beautiful shape, small size, few peripheral components, high sensitivity, stable performance, low power consumption, high output power, etc.As long as the assembly is correct according to the requirements, the radio can be received after a little debugging after installation, without unified debugging, which is an ideal kit for learning electronic technology.It can not only receive radio stations but also talk to each other, constantly stimulating students' interest in learning.Radio parameters: FM band 88MHz~108MHz;The working power supply voltage range is 2.5V~5V;Static current 13.5mA;Signal noise ratio>80dB;Harmonic distortion ＜ 0.8%;Output power ≥ 350mA.Working current of transmitter: 18mA, intercom distance: 50-100m.
Points: 1Type: Application DocumentUploader:huhuhah0009Upload time: September 21, 2013
Introduction: CXA1019S chip is used to complete the design of receiver mixing, intermediate amplifier, demodulation, etc., and BU2614 chip is used to generate a stable local oscillator and control the resonant frequency of the input tuning circuit by PLL frequency synthesis, so as to achieve electrical tuning.The MCU uses MCS-51 series to control the frequency synthesizer BU2614. With keyboard, display and memory circuits, it can realize a variety of program-controlled search, radio storage and other functions.
Points: 1Type: Application DocumentUploader:nishisbUpload time: September 22, 2013
Introduction: This content introduces the knowledge of how to make ore radio by yourself, introduces the common sense of some parts and the installation methods of two kinds of ore radio, and finally introduces the method of making ore radio amplifier with vigilance triode.This book is suitable for radio enthusiasts
Points: 1Type: Application DocumentUploader:nonogugu66Upload time: September 22, 2013
Introduction: Common Tools, Instruments and Maintenance Methods I Common Tools and Instruments II Disassembly and Assembly of Casing and Core III Common Fault Inspection Methods IV Common Fault Inspection Procedures Common Fault Maintenance Examples
Points: 1Type: Application DocumentUploader:huhuhah0009Upload time: September 22, 2013
Introduction: This training guide mainly introduces the basic principle of transistor radio, reading the circuit diagram of the radio, the assembly process of the radio, the analysis and troubleshooting of the common failures of the radio, and the static and dynamic debugging of the radio.Through the assembly and debugging of the radio, students can master the reading of the circuit diagram of the whole machine, the identification of common components, the analysis and troubleshooting of common failures of the radio, and the use of high-frequency signal generator, oscilloscope, millivoltmeter and other instruments.Cultivate students' ability to analyze and solve problems independently, and further improve their practical ability, theoretical knowledge understanding ability and practical ability.This training guide closely focuses on theoretical expertise. Students should flexibly use the theoretical knowledge they have learned to solve practical problems when using this training guide.The introduction of electronic technical documents and the assembly process of electronic complete machine in this training guide are written in combination with the production situation of the enterprise. The teacher can make targeted explanations when explaining. If students are interested, they can refer to other extracurricular books.
