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Manuals
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Johnson Manuals
Transmitter
Viking I
Instruction manual
Johnson Viking I Instruction Manual
Johnson viking i radio transmitter
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
RF Section
Keying
Power Supplies
Metering
Transmitter Kit
Speech Amplifier and Modulator
Exciter
VFO Requirements
Chassis Bottom View
Schematic Diagram
Adequate Output
Tube Complement
Separate Oscillator Tanks
Two Controls
Transmitter Installation and Operation
Warning
Initial Installation
Coupling
Fine Coupling
Audio
Meter
Theory of Operation
The Viking I Block Diagram
The Buffer
The R.F. Power Amplifier
The PI Network Antenna Coupling
The Modulator
The Power Supplies
Keying of the Viking
VFO Excitation
Direct Grid Connection
Connection through 500 Ohm Primary of Modulator Driver Transformer
Viking I Tuning Details
Typical Tuning
160 Meter Tuning
80 Meter Tuning
20 Meter Tuning
15 Meter Tuning
10 And 11 Meter Tuning
Phone Operation
VFO Operation
Zero Beating
Curves
Tabulated Data
Pi-Network Tuning and Harmonic Suppression
Importance of Grounding
How to Obtain a Good Ground
Loading Random Antennas with the Pi Network
Troubleshooting
Schematics, Photographs and Charts
Typicak Viking
Fuse Blows
R.F. Exciter
Inability to Tune Final
Inability to Load Final
Report of Excessive Harmonics
R.F. on Chassis or Mike
High 4D32 Plt Current with Key up
A Squeal Is Heard on Phone
Tube Socket Connections Bottom View
Condenser-Resistor Color Code
Color Coding of Fixed Resistors
Socket Connections
Viking I Transmitter
CW Operation with 115 V 60 Cycle of Input
Parts List
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