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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
    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
    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
    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
    Troubleshooting is not always easy! Maybe one of the Resitors or other parts is shorted or open?