point-contact transistors

Discussion in 'General Electronics Chat' started by electrics, Feb 27, 2010.

  1. electrics

    Thread Starter New Member

    Feb 26, 2010
    3
    0
    i Have read the limitied sources on the internet especially wikipedia but i couldnt understand the logic of this mammoth of the transistors, i plead you describe it in detail especially on the depiction with gold foil on the wiki, is the germanium block there have a p and a n type joint ?
    if so pls tell me how this device works..best regards..
     
  2. electrics

    Thread Starter New Member

    Feb 26, 2010
    3
    0
    i especially wonder what makes the current flowing from collector to base bigger when a bigger voltage is applied to the emitter base
     
  3. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Try a Google search on the history of transistors.

    The first transistor was indeed huge. Later transistors work in a very similar fashion.

    Have a look at our E-books. Links to our E-books are available at the top of the page everywhere on the website.
     
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