Don's article was great and refreshed my memory about where 3663 finally came from. It's hard to imagine how they worked crystal-controlled split frequency full break-in with the primitive equipment of that era. Finding the other station on a regenerative receiver?
So moving to a single frequency net was an astounding idea!
W8JTQ introduced me to QMN in 1969 and when I visited him in Flint, he said he had started in 1919 with a spark gap transmitter. But getting a vacuum tube and building a continuous wave transmitter made him a believer.
Of course we all know that CW is the "ultimate speech processor" modulation.?
Mike WB8DTT