I found the answer to my own question!http://forums.qrz.com/archive/index.php/t-67809.html
"Unlike the old "self-rectifying" raw a.c. rigs of the 1920's, this setup would use the triode tubes as a high power balanced modulator. Feed rf to the grids in parallel, but use a balanced pushpull plate tank circuit. The "carrier" would be balanced out, but there would be two "sidebands" 120 hZ apart: USB and LSB at 60 Hz. This would be basically a double sideband suppressed carrier transmitter tone modulated with 60 Hz a.c. There would be no raspiness or hash, just two carriers 120~ apart. The signal would be narrow and clean, and could be copied with a normal CW receiver or with a diode AM detector with no BFO."
Sounds cool !!