Basic Information: The Johnson Viking I transmitter was made from 1949 to 1952, and was sold as a kit for $209.50 or assembled for $259.50. It is crystal-controlled and covers the 160-10M amateur bands. The tube lineup is a 6AU6 oscillator, 6AQ5 buffer/doubler, 4D32 final amp, 6AU6 microphone amp, 6AU6 driver, and push-pull 807's in the modulator. Power input to the final is 115W CW and 100W AM, ...