Interesting 3v amplifier push-pull circuit using complimentary PNP and NPN transistors

I'm prototyping a small, low power amp using this circuit that I learned about from @radiofun232. Ko's circuit is a bit more refined and also includes a pre-amp stage. I will eventually get that working.

Reference materials:

https://worldradiohistory.com/UK/Bernards-And-Babani/Bernards/128-Practical-Transistors-and-Transistor-Circuits.pdf

https://worldradiohistory.com/BOOKSHELF-ARH/Author-Groups/L.E.Garner/Transistor-Circuit-Handbook-L-E-Garner.pdf

@radiofun232 version of this circuit:
https://youtu.be/GcXw4-tnitc