Need help with am trans. project

Discussion in 'The Projects Forum' started by ducky_bass, Jun 22, 2010.

  1. ducky_bass

    Thread Starter New Member

    Apr 12, 2010
    13
    0
    Hi, I'm building a am transmitter, but there's a part on the parts list that I don't get. It's a varable capacitor and it said "1/2 2 J gang". If anyone can tell me what this means your help would be appretiated.

    -ducky_bass
     
  2. Audioguru

    AAC Fanatic!

    Dec 20, 2007
    9,455
    913
    40 years ago a dual gang 365pf variable capacitor was used by hobby people to make a simple crystal or normal AM radio.
    The capacitor is no longer available unless you take it from an old AM radio.
     
  3. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    315
    I need help with a trans am. ;)

    ducky, do you have a link to the schematic?
     
  4. Audioguru

    AAC Fanatic!

    Dec 20, 2007
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    There are a few AM transmitter projects on the internet.
    Search in Google for them.
     
  5. Ron H

    AAC Fanatic!

    Apr 14, 2005
    7,049
    659
    I don't have a schematic, but here's a nice finished product.


    [​IMG]
     
  6. Ron H

    AAC Fanatic!

    Apr 14, 2005
    7,049
    659
    Check out these parts. Also, Google "crystal set parts".
     
  7. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    315
    Ron H,....Boy does that bring back memories. I remember the super stiff accelerator ..
    and the ladies.. ;)

    Now back to the trans am...I mean the AM transmitter.

    I found this while surfing around, and am quite happy with the details and the thoroughness of the page. I really like the quote:

    how....true ;)

    http://my.integritynet.com.au/purdic/oscillators.htm

    and for more:
    http://www.discovercircuits.com/A/am-trans.htm
     
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