Ian White, G3SEK wrote:
"The only technical issue is the "assumption" that the conjugate of the
load impedance is equal to the output impedance of the device."

It`s true if maximum power is being transferred.

King, Mimno, and Wing sat so on page 43 of "Transmission Lines,
Antennas, and Wave Guides":

"If a dissipationless network is inserted betweeen a constant-voltage
generator of internal impedance Zg, and a load of impedance ZR such that
maximum power is delivered to the load, at every pair of terminals the
impedances looking in opposite directions are conjugates of each other."

The authors, Arnie, Larry, and Alex were all teaching at Harvard in 1945
when their book was published.

Walter Maxwell, W2DU has been saying the same thing yet has mistaken
nay-sayerrs.

Best regards, Richard Harrison, KB5WZI