do u know any idea to create a diode?

Discussion in 'The Projects Forum' started by muchy, Dec 17, 2009.

  1. muchy

    Thread Starter New Member

    Dec 14, 2009
    3
    0
    i have a project so is that modelling a diode
    is there anyone knows something about diodes?

    i can give more info ...

    thank you
     
  2. steinar96

    Active Member

    Apr 18, 2009
    239
    4
  3. rjenkins

    AAC Fanatic!

    Nov 6, 2005
    1,015
    69
    For a DIY one, look at either 'Cats Whisker detector' diode or 'Metal Rectifier'.
     
  4. KL7AJ

    AAC Fanatic!

    Nov 4, 2008
    2,040
    287
    A Gillette Blue Blade razor and a #2 pencil lead. (Alas, Gillette Blue Blades are no longer available. They made the BEST cat's whisker detectors!)

    What a lot of folks don't realize is that the Cat's whisker is actually a HOT CARRIER diode! That's why they were so sensitive!

    Eric
     
  5. zhenke

    New Member

    Dec 16, 2009
    1
    0
    Electron tube or Semiconductor ?
     
  6. CDRIVE

    Senior Member

    Jul 1, 2008
    2,223
    99
    I built one when I was a young'n. It's the oxides that's formed on the blade that creates a semiconductor junction with the pencil point. I don't remember which terminal is the cathode though.


    Here's a link describing it.
    http://bizarrelabs.com/foxhole.htm
     
Loading...