No, clearly there’s no reflexing in the circuit. The circuit is all there; it’s just figuring out the connectors

and the purpose of that audio oscillator. Oh, and the keying relay.
One circuit much more interesting than the basic reflex circuit, i think, is the 6SQ7 triode working both

as AF amp and BFO oscillator – at the same time. AND, it actually works well. Used in the Navy TCH

and TCS. I would not have thought that would work at all except as like some magazine kink, like a

feeback wire from plate to grid was, but no, it works well.

-Hue Miller