Tune Circuit

Discussion in 'General Electronics Chat' started by Asad Ullah Muhammad, Dec 23, 2008.

  1. Asad Ullah Muhammad

    Thread Starter New Member

    Oct 20, 2008
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    0
    Hi I want to build am A.M Reciever as a college project.
    can somebody help me in building a tune circuit for this?
    How is the combination of Inductor and capacitor is used to make a tune circuit
     
  2. Wendy

    Moderator

    Mar 24, 2008
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    2,536
    There is always the old crystal radio method, which is simplicity itself, but very inefficient.

    A better way is superhetrodyne. I would suggest you Google and also use Wikipedia on that keyword.
     
  3. bertus

    Administrator

    Apr 5, 2008
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  4. PRS

    Well-Known Member

    Aug 24, 2008
    989
    35
    Put an LC tank at the collector of a common emitter amplifier, no resister. That gives you amplification and a tuned circuit. But there is much more to do when building a standard AM radio. The best way is to make a superheterodyne receiver. Google the web for the explanation. Try wikipedia.
     
  5. Winston

    Member

    Dec 25, 2007
    22
    0
    howstuffworks dot com has a nice introductory explanation of the tank circuit. Right at the moment I don't remember how you make a basic a.m. receiver out of that. I'll go look it up.
     
  6. KL7AJ

    AAC Fanatic!

    Nov 4, 2008
    2,040
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    Actually, the best of both worlds would be a regenerative receiver....incredible sensitivity AND simplicity.
     
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