novice confusion about transistors in simple 8-ohm speaker amp

The circuit drawn by MarkT is a perfectly viable starting point - but..

  • It has a gain of 1.
  • it'll only generate about 3.8v p-p, which into 8 ohms is only (3.8 / 2 x SQRT (2))^2 / (8 + 4.7/2) or about 200mW.

Not much.

Allan