Note
QST, Nov 1954, p. 85.
Walter Ashe catalog 1957 (probably issued in 1956), p. 5.
Allied Radio catalog 1958 (copyright 1957), p. 269.
Allied Radio catalog 1960 (copyright 1959), p. 389.
QST, Aug 1963, p. 88.
Allied Radio catalog 1964 (copyright 1963), p. 223.
The Viking Adventurer ran 50 watts input CW on 80-10 meters with a 6AG7 oscillator/807 amplifier lineup. Both tubes' cathodes were keyed. It included TVI suppression measures and had a pi-net output.
References
Review. Popular Electronics, Apr 1955, p. 55.
Review: CQ, Jun 1955, p. 44.
Review. Popular Electronics, Nov 1958, p. 79.