QST, Jan 1965, p. 119.
QST, May 1966, p. 119.
The model 913A 6 meter amp ran 500 watts input with a 4X150A tube. It used Class AB1 for SSB, AM, and RTTY, and Class C for CW and FM. The amplifier required 5 watts drive and included a self contained, solid-state power supply.
