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AM transmitter

Discussion in 'General Electronics Discussion' started by Ferret75, Apr 5, 2016.

  1. Ferret75

    Ferret75

    2
    0
    Apr 5, 2016
    Hi don't no if am posting in the right place but can some one help please

    Am lookinG in to make an Am transmitter but have bin given a list of parts

    resistor - 12r
    resistor - 330k
    capacitor - 224m
    capacitor - 472
    transistor - bc182lb
    And ferret rod
    But have some one got a diagram please or some help thanks
     
  2. davenn

    davenn Moderator

    13,176
    1,719
    Sep 5, 2009
    hi there,
    welcome to EP

    Well it would be better to find a circuit for one then you will know what parts you need

    Try googling basic AM transmitter circuit diagram and see what you come up with


    Dave
     
  3. Colin Mitchell

    Colin Mitchell

    1,419
    314
    Aug 31, 2014
    Just stick all the parts together and join them to the ferret rod. That's the we all work in electronics.
     
    hevans1944 likes this.
  4. hevans1944

    hevans1944 Hop - AC8NS

    4,101
    1,948
    Jun 21, 2012
    And be sure to use genuine ferret glue, not that gorilla glue stuff because it expands and makes a mess.
     
    duke37 likes this.
  5. BobK

    BobK

    7,582
    1,634
    Jan 5, 2010
    And a new proverb is born:

    "Never use Gorilla glue when Ferret glue will do."

    Bob
     
    hevans1944 likes this.
  6. hevans1944

    hevans1944 Hop - AC8NS

    4,101
    1,948
    Jun 21, 2012
    Also, "Never bring a ferret (glued or not) to a gunfight; bring a Gorilla and/or a gun." Elmer Keith would (probably) say that if he were still alive.
     
  7. Ferret75

    Ferret75

    2
    0
    Apr 5, 2016
    Good evening all how do I work out how many turns I put on the ferrite rod to get the right mhz please
     
  8. hevans1944

    hevans1944 Hop - AC8NS

    4,101
    1,948
    Jun 21, 2012
    This isn't easy since you know absolutely NOTHING about the magnetic characteristics of the ferrite rod, nor have you specified a variable tuning capacitor that you would use to resonate the "right mhz" unless your post of "capacitor - 472" refers to a 472 pF air-variable capacitor. If you can, take a look at a typical "loop stick" antenna inside a portable AM radio to get some idea of the number of turns and the wire gauge you need to use. Often Litz wire is used for this application, which you probably won't be able to find. You can purchase pre-wound ferrite rods with sufficient turns for broadcast AM reception. See this Google page for more information.
     
    duke37 likes this.
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