novice confusion about transistors in simple 8-ohm speaker amp

Other Hardware General Electronics
5

ReverseEMF:
Yeah, try searching for LM386 module.

In the thrift store?

Things have moved to class-D.

Try the PAMxxxx range for tiny amps.
PAM8403 2*3watt class-D (high efficiency) on a circuit board for < US$1 on ebay.
Leo..