noniverting transistor amp

[Rob]

jorgen.bergfors at idg.se wrote:

> >Hmm, common emmiter circuits (open collector) can give you any level you
> >want (Uce max is the limit), but is inverting. An emitter follower is
> >non inverting, but has gain <=1 , so no larger voltage output. Common
> ><<base cicuits may have a too low input impedance.  So: no, there isn't
> >such a one tranny circuit. You need two common emmiter invertes in series.
> 
> >I think so, or am I wrong?
> >m.c.
> 
> If you take a P-channel FET with the source tied to ground and the drain tied to +12V via a resistor and take out the signal at the drain. Wouldn't  that work?

Yeah, but P-channel FETs are not that common, and I want to build this
with stuff that is common..

 I guess if anything this thread has been sort of a challenge...With
unlimited resources, one could design anything.. But, when u limit the
resources and available materials, it gets very tricky.

AFAIK, it seems requires two trannies.. But, I thought that perhaps
there was a way to do this..

I guess the opamp is the way to go..

Rob