matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 8683
Posted: 07:47pm 24 Mar 2023
What about just adding an emitter follower? I seem to remember way back when this was discussed.
Our signal is approximately 0.1V to 3.1V at max volume which is plenty to drive a small speaker if we can reduce the impedance. The collector could be tied to 5V to give plenty of headroom
Can one of our electronics experts discuss the pros and cons