|
|
发表于 2009-7-13 16:08:56
|
|阅读模式
英文的矿石收音机教材：
Crystal Radio Engineering
a web book by Kenneth A. Kuhn
updated Apr. 17, 2008
This is a collection of articles that form a text book on designing crystal radios. The primary focus is to illustrate to engineering students how to apply concepts of engineering to solve a problem. It takes a lot of in-depth research to be good at what one does. The main part of this book deals with understanding the required concepts to build a good basic crystal radio. Advanced concepts (to be written and posted last) will deal with a number of improvements that can be made to the basic design.
Here is a link to an excellent site for crystal radio information:
http://www.crystalradio.net/crystalplans/index.shtml
http://www.1n34a.com/ This is an excellent site with links to other crystal radio sites. Be sure to check the Ben Tongue link for a number of practical articles.
Here is a source for parts I found using a Google search
http://www.midnightscience.com/catalog5.html#part2 This company specializes in parts for crystal radios and sells variable capacitors, diodes, crystal earphones, etc. I have not bought from them before so I do not know how good they are but I might try them someday.
The following are links to the pdfs for each chapter. If a link is not active then the chapter is not complete -- I am working as fast as I can to finish and post those so check back often. The following is only a guide for now. As the book develops I will likely add chapters or merge some chapters. Many of the chapters are still incomplete and more material will be added as I have time. I am trying to post all I have at the moment, however incomplete, so that students in the communications class, EE421, can use this to help with their crystal radio projects.
title.pdf
introduction.pdf
component_sources.pdf
rf_field_strength.pdf
antenna_and_ground_system.pdf
simple_radios.pdf
mathematical_model_of_wire_antenna.pdf
resonant_circuit.pdf
antenna_matching.pdf
designing_inductors.pdf
tapping_inductors.pdf
diode_detectors.pdf
audio_transformer.pdf -- new as of April 13, 2008
headphones.pdf
speakers.pdf
loop_antennas.pdf -- new as of April 17, 2008
a_simple_crystal_radio.pdf
advanced_topics.pdf
A chapter on making various measurements of your system is planned. Some other chapters or additional information is planned to connect all the chapters together smoothly. Right now the connections are rough -- but this is a work in progress.
部分内容的连接，PDF文件：
http://www.kennethkuhn.com/stude ... d_ground_system.pdf
title.pdf
http://www.kennethkuhn.com/students/crystal_radios/title.pdf
introduction.pdf
http://www.kennethkuhn.com/stude ... os/introduction.pdf
component_sources.pdf
http://www.kennethkuhn.com/stude ... mponent_sources.pdf
rf_field_strength.pdf
http://www.kennethkuhn.com/stude ... _field_strength.pdf
antenna_and_ground_system.pdf
http://www.kennethkuhn.com/stude ... d_ground_system.pdf
simple_radios.pdf
http://www.kennethkuhn.com/stude ... s/simple_radios.pdf
mathematical_model_of_wire_antenna.pdf
http://www.kennethkuhn.com/stude ... of_wire_antenna.pdf
resonant_circuit.pdf
http://www.kennethkuhn.com/stude ... esonant_circuit.pdf
antenna_matching.pdf
http://www.kennethkuhn.com/stude ... ntenna_matching.pdf
designing_inductors.pdf
http://www.kennethkuhn.com/stude ... gning_inductors.pdf
tapping_inductors.pdf
http://www.kennethkuhn.com/stude ... pping_inductors.pdf
diode_detectors.pdf
http://www.kennethkuhn.com/stude ... diode_detectors.pdf
audio_transformer.pdf
http://www.kennethkuhn.com/stude ... dio_transformer.pdf
headphones.pdf
http://www.kennethkuhn.com/students/crystal_radios/headphones.pdf
speakers.pdf
http://www.kennethkuhn.com/students/crystal_radios/speakers.pdf
loop_antennas.pdf -- new as of April 17, 2008
http://www.kennethkuhn.com/stude ... s/loop_antennas.pdf
a_simple_crystal_radio.pdf |
|
IP卡
狗仔卡
