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FM Radio receiver project

Discussion in 'General Electronics Discussion' started by DGilbert, Jan 28, 2013.

  1. DGilbert

    DGilbert

    2
    0
    Jan 28, 2013
    Hello All,

    I've recently become interested in electronics and started reading some books on the subject last year. My first project was an astable multivibrator which I used to make flashing eyes for our Halloween pumpkin, much to my daughters' delight. Now I want to try something a little more adventurous in the form of an FM radio that the girls can use to listen to music (was thinking of a There are a wealth of diagrams out there but no real indication as to which is best or most appropriate. I have seen several built around an TDA7021T IC which purport to be simple enough.

    I have a few of questions about this project that I would value some input on.

    Firstly, is this too tricky considering it is only my second circuit?

    Secondly, are there any suggestions for good circuits? I have seen this one:

    http://www.circuitdiagram.org/fm-receiver-circuit.html

    and this one:

    http://www.circuitlab.org/2012/07/schematics-mini-fm-receiver-circuit.html?m=0

    Lastly, are there any things I should be aware of before I start this off?

    I would really appreciate any help or advice anyone is willing to give.

    Thanks

    David
     
  2. oyvdahl

    oyvdahl

    15
    0
    Oct 11, 2012
    I have not used the chip, but looking at the two schematics I would go for the first one because it also has a built-in amplifier.

    I have only built one fm receiver earlier. I remember having some trouble with tuning. But I guess the TDA7021T will help you make that easier.

    I think you should go for it!
    If you have problems along the way, come back here and ask for help.
     
  3. DGilbert

    DGilbert

    2
    0
    Jan 28, 2013
    Thanks oyvdahl. I've ordered the parts so hopefully in the next week or so I should be able to start assembling and see how it goes.
     
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