SPICE circuit correction

Thread Starter

regrehan

Joined May 27, 2009
3
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.
 
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