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Viking I
Johnson Viking I Manuals
Manuals and User Guides for Johnson Viking I. We have
1
Johnson Viking I manual available for free PDF download: Instruction Manual
Johnson Viking I Instruction Manual (50 pages)
Johnson Viking I radio transmitter
Brand:
Johnson
| Category:
Transmitter
| Size: 7.64 MB
Table of Contents
RF Section
3
Keying
3
Power Supplies
3
Metering
3
Transmitter Kit
4
Speech Amplifier and Modulator
4
Exciter
4
VFO Requirements
4
Chassis Bottom View
5
Schematic Diagram
5
Adequate Output
6
Tube Complement
6
Separate Oscillator Tanks
6
Two Controls
6
Transmitter Installation and Operation
7
Warning
7
Initial Installation
9
Coupling
10
Fine Coupling
10
Audio
10
Meter
10
Theory of Operation
11
The Viking I Block Diagram
11
The Buffer
12
The R.F. Power Amplifier
12
The PI Network Antenna Coupling
12
The Modulator
13
The Power Supplies
13
Keying of the Viking
14
VFO Excitation
14
Direct Grid Connection
15
Connection through 500 Ohm Primary of Modulator Driver Transformer
16
Viking I Tuning Details
17
Typical Tuning
17
160 Meter Tuning
19
80 Meter Tuning
19
20 Meter Tuning
20
15 Meter Tuning
20
10 And 11 Meter Tuning
20
Phone Operation
21
VFO Operation
21
Zero Beating
22
Curves
23
Tabulated Data
24
Pi-Network Tuning and Harmonic Suppression
25
Importance of Grounding
25
How to Obtain a Good Ground
25
Loading Random Antennas with the Pi Network
27
Troubleshooting
30
Schematics, Photographs and Charts
30
Typicak Viking
30
Fuse Blows
32
R.F. Exciter
33
Inability to Tune Final
33
Inability to Load Final
33
Report of Excessive Harmonics
33
R.F. on Chassis or Mike
34
High 4D32 Plt Current with Key up
34
A Squeal Is Heard on Phone
34
Tube Socket Connections Bottom View
43
Condenser-Resistor Color Code
43
Color Coding of Fixed Resistors
43
Socket Connections
43
Viking I Transmitter
44
CW Operation with 115 V 60 Cycle of Input
44
Parts List
46
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