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Build Your Own Transistor Radios A Hobbyist's Guide to High-Performance and Low-Powered Radio Circuits

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ISBN-10: 0071799702

ISBN-13: 9780071799706

Edition: 2013

Authors: Ronald Quan

List price: $50.00
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A do-it-yourself collection of innovative, high-quality projects for electronics enthusiastsBuild Your Own Transistor Radiospushes the envelope of DIY radio designs. Ronald Quan, an electronics engineer with more than 65 patents, presents a range of projects, suitable for advanced beginners and more experienced engineers, that go far beyond the standard crystal sets of the past. This book covers traditional radios -- TRF (Tuned Radio Frequency), reflex, regenerative, and super-heterodyne topologies – as well as front-end circuit designs for SDR (Software Defined Radio), the emerging future standard for radio technology.Using widely available materials and the book’s easy-to-follow plans,…    
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Book details

List price: $50.00
Copyright year: 2013
Publisher: McGraw-Hill Education
Publication date: 12/11/2012
Binding: Paperback
Pages: 496
Size: 7.20" wide x 9.10" long x 1.20" tall
Weight: 1.782
Language: English

Ronald Quanis a member of SMPTE, IEEE, and the AES. He worked on the design of wideband FM detectors for an HDTV tape recorder at Sony Corporation, and a twice-color subcarrier frequency (7.16 MHz) NTSC vector-scope for measuring differential phase and gain for Macrovision, where he was a Principal Engineer. Ronald currently holds at least 65 US patents in the areas of analog video processing, low noise audio and video amplifier design, low distortion voltage controlled amplifiers, wide band crystal VCOs, video monitors, audio and video IQ modulation, audio and video scrambling, bar code reader products, audio test equipment, and video copy protection.

Preface
Acknowledgments
Introduction
Tuned Radio-Frequency (TRF) Radios
Block Diagram of a TRF Radio
Circuit Description of a TRF Radio
Regenerative Radio
Block Diagram of a Regenerative Radio
Circuit Description of a Regenerative Radio
Reflex Radio
Block Diagram of a Reflex Radio
Circuit Description of a Reflex Radio
Superheterodyne Radio
Block Diagram of a Superheterodyne Radio
Circuit Description of a Superheterodyne Radio
Software-Defined Radio Front-End Circuits
Block Diagram of a Software-Defined Radio Front End
Description of Front-End Circuits for a Software-Defined Radio System
Comparison of the Types of Radios
Calibration Tools and Generators for Testing
Alignment Tools
Test Generators
Inductance Meter
Capacitance Meter
Oscilloscopes
Radio Frequency (RF) Spectrum Analyzers
Where to Buy the Tools and Test Equipment
Components and Hacking/Modifying Parts for Radio Circuits
Antenna Coils
Variable Capacitors
Transistors
Earphones
Speakers
Passive Components
Vector and Perforated Boards
Hardware
Parts Suppliers
Building Simple Test Oscillators and Modulators
The Continuous-Wave Signal
The Amplitude-Modulated Signal
First Project: ACWRF Test Oscillator
Modulator Circuit for the CW Generator
Parts List
Alternate Circuits
Parts List
Low-Power Tuned Radio-Frequency Radios
Design Considerations for TRF Radios
Improving Sensitivity and/or Selectivity via Antenna Coils or Circuits
First Design of TRF Radio
Parts List
Circuit Description
Variation of the Design (Alternate Design of the TRF Radio)
Parts List
Author's Earlier TRF Designs
Transistor Reflex Radios
Motivation Behind Amplifying Both Radio-Frequency and Audio-Frequency Signals
One-Transistor TRF Reflex Radio
Parts List
Multiple-Transistor Reflex Radio Circuit
Parts List
A Low-Power Regenerative Radio
Improving Sensitivity by Regeneration
Improving Selectivity by Q. Multiplication via Regeneration
Design Considerations for a Regenerative Radio
Parts List
Parts List
Parts List
Superheterodyne Radios
Commercially Made Transistorized Superheterodyne Radios
A Four-Transistor Radio Schematic
Parts List
An Eight-Transistor Radio
Parts List
Alternative Oscillator and Antenna Coil Circuit
An Item to Note
Low-Power Superheterodyne Radios
Design Goals for Low Power
Low-Power Oscillator, Mixer, and Intermediate-Frequency Circuits
Low-Power Detector and Audio Circuits
"First" Design of a Low-Power Superheterodyne Radio
Parts List
Alternative Low-Power Superheterodyne Radio Design
Parts List
Photos of Low-Power AM Superheterodyne Radios
Exotic or "Off the Wall" Superheterodyne Radios
A One-Transistor Superheterodyne Radio
Design Considerations for a One-Transistor Superheterodyne Radio
Parts List
A Two-Transistor Superheterodyne Radio
Parts List
Inductor-less Circuits
Ceramic Filters
Parts List
Gyrators (aka Simulated or Active Inductors)
Inductor-less (aka Coil-less) Superheterodyne Radio
Parts List
Introduction to Software-Defined Radios (SDRs)
SDR Front-End Circuits, Filters, and Mixers
Phasing Circuits for 0- and 90-Degree Outputs for I and Q Signals
Multipliers for Generating 0- and 90-Degree Phases
Example Radio Circuits for Software-Defined Radios
Parts List
Second SDR Front-End Circuit for the 40-Meter Amateur Radio Band
Parts List
Oscillator Circuits
One-Transistor Oscillator
Differential Pair Oscillator
References
Mixer Circuits and Harmonic Mixers
Adding Circuits Versus Mixing Circuits
Distortion Can Be a Good Thing (for Mixing)
Single-Bipolar-Transistor Distortion
Simple Transistor Mixer and Its Conversion Transconductance
Differential-Pair Mixer
Harmonic Mixer Circuits
Mixer Oscillator Circuits
Conversion Gain
References
Sampling Theory and Sampling Mixers
Sampling Signals as a Form of Muliplication or Mixing
Finite Pulse-Width Signals
Aliasing Is a Mixing Effect
Multiplexer Circuits as Balanced Mixers
Tradeoffs in Performance of the Mixers
References
In-Phase and Quadrature (IQ) Signals
Introduction to Suppressed-Carrier Amplitude Modulation
How I and Q. Signals Are Generated
Demodulating I and Q Signals
I and Q Signals Used in Software-Defined Radios (SDRs)
References
Intermediate-Frequency Circuits
IF Amplifiers
Gain-Controlled IF Amplifiers
Considerations of Distortion Effects on IF Amplifiers
References
Detector/Automatic Volume Control Circuits
Average Envelope Detectors
Power Detectors
Synchronous Detectors
IQ Detectors for AM Broadcast Signals
Measuring an Average Carrier or Providing Automatic Volume Control
References
Amplifier Circuits
Introduction to Operational Amplifiers
Amplifier Characteristics
Connecting Multiple Amplifiers for an Amplifier System
Practical Considerations for Using Amplifiers
References
Resonant Circuits
Simple Parallel and Series Resonant Circuits
Resonant Circuits in Oscillators
Examples of Band-Pass and Band-Reject Filters
References
Image Rejection
What is an Image Signal?
Methods to Reduce the Amplitude of the Image Signal
Analysis of an Image-Rejection Mixer Using I and Q Signals
Analysis of the Image-Reject Mixer
Consequences of an Imperfect 90-Degree Phase Shifter on Reducing the Image Signal
References
Noise
Sources of Random Electronic Noise and Some Basic Noise Theory
Paralleling Transistors for Lower Noise
Differential-Pair Amplifier Noise
Cascode Amplifier Noise
Selecting Op Amps
References
Learning by Doing
Update on the One-Transistor Superheterodyne Radio
Comments on SDR 40-Meter Front-End Circuit
Experimenting with Mixers and Using the Spectran Spectrum Analyzer Program
Conducting Experiments on Op Amps and Amplifiers
Experiments with a Resonant Circuit
Thevenin-Equivalent Circuit
Analyzing a Bridge Circuit
Some Final Thoughts on the Book
References
Parts Suppliers
Inductance Values of Oscillator Coils and Intermediate-Frequency (IF) Transformers
Short Alignment Procedure for Superheterodyne Radios
Index