Hmm... These little ones seems to be SOT523, and the marking looks like an "AmA" to me.
Can't find any match. Does these ring a bell to anyone?

EDIT: some kind of FET it seems...

@hkz have you tried to ask it anything?
@hkz NPN Darlington Pair?
@MuseumJoe seems they're FETs, not BJTs
Will redraw the circuit and investigate in the (hopefully not too far off) future.
Try Reddit: r/askelectronics