> Yes, a transistor, be it bipolar or fet will amplify but you have to bias
it
> properly. You just can't just use a single device transistor without all
the
> necessary biasing, protection, power output consideration, gain
calculations,
> and impedance matching. True, it is possible to provide what you need with
only
> one transistor or mosfet but biasing in the linear region could be
complicated
> or poor results will be obtained.


If your voltage swing is already adequate, an emitter follower does a fair
job of a minimum parts count power amplifier. Almost a 1 component solution.


        RM

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