...from the N4OZI website...
Viking Valiant transmitter built by E. F. Johnson in the late 1950's.
The Valiant is rated at 275 watts plate power input for CW telegraphy service and 200 watts for AM modulated phone. Frequency range is 160-10m in seven bands with VFO control.
The 21 tube lineup (including a total of five 6146's) is as follows:
- 6AU6 VFO
- 6CL6 Crystal Oscillator Buffer
- 5763 Multiplier
- 6146(3) RF Power Output
- 6AQ5 Clamper
- 12AU7 Keyer
- 12AX7 Audio Amplifier
- 6AL5 Audio Clipper
- 6C4 Third Audio Amplifier
- 12AU7 Audio Driver
- 6146(2) Audio Modulators
- 866(2) Mercury Vapor H.V. Rectifiers
- 5V4 L.V. Rectifier
- 6BY5GA Bias Rectifier
- OA2 Voltage Regulator
- OC3(2) Voltage Regulators.
Power requirements are 185 watts standby and 560 watts key down CW (fully loaded) at 117VAC.
The unit measures 21.125" x 17.375" x 11.725" and weighs 83 lbs.
See KK5FE for high quality internal photos and the scanned owner's manual.
http://www.frobenius.com/valiant.htm -- Last Revision: 31 January 1999
Copyright © 1995 - 2008 Jack Harper
