dc bias of a common emitter amplifier

Discussion in 'General Electronics Chat' started by confirmguy, Oct 7, 2007.

  1. confirmguy

    Thread Starter New Member

    Oct 7, 2007
    1
    0
    i did this experiment under that topic.........i built a basic transistor amplilfier known as common emitter amplifier and after connecting every thing i was asked to change the tranisistor with a tranistor of exactly the same type and get the value 4 d base, emitter and collector ................on doing this, there was little or no diffrence and i am asked to comment on it
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Without a schematic, it's hard to see if there might be something remarkable about the change. Do you have spec's on the two transistors?
     
  3. thingmaker3

    Retired Moderator

    May 16, 2005
    5,072
    6
    I don't understand. Did you read 4Vdc on each lead? If so, the leads were apparently shorted together.
     
  4. billbehen

    Active Member

    May 10, 2006
    39
    1
    Troubleshooting is not always easy! Maybe one of the Resitors or other parts is shorted or open?
     
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