SPICE circuit correction

Discussion in 'Feedback and Suggestions' started by regrehan, May 27, 2009.

  1. regrehan

    Thread Starter New Member

    May 27, 2009
    3
    0
    Greetings:

    I'm new here (thanks for the excellent site ... I'm working through it slowly), and I could be wrong. But, you've asked for feedback.

    On this page: http://www.allaboutcircuits.com/vol_3/chpt_4/5.html
    There's a SPICE circuit for the common emitter audio amplifier (the unbiased one). The circuit "program" looks like this:
    ============
    common-emitter amplifier
    vinput 1 0 sin (0 1.5 2000 0 0)
    r1 1 2 1
    q1 3 2 0 mod
    rspkr 3 4 8
    v1 4 0 dc 15
    .model mod1 npn
    .tran 0.02m 0.74m
    .plot tran v(1,0) i(v1)
    .end
    ============

    I believe this is wrong. I believe line 3 should be: "r1 1 2 1k". Otherwise, r1 becomes a 1-ohm resistor.

    -- Rick Grehan
    P.S. And I apologize if someone has pointed this out already.
     
  2. Dcrunkilton

    E-book Co-ordinator

    Jul 31, 2004
    416
    11
    regrehan,

    Thanks for pointing out the error.

    It has heen updated in the copy at ibiblio.

    Dennis Crunkilton
     
  3. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    144
    Thanks regrehan and Dennis, the correction is now on AAC.

    Dave
     
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