US Navy Radioman Training Course Manuals - Bureau of Navigation
 Radioman 3C - 
1926 - "Instructions and Exercises to be
Used in Preparation For Advancement to the Rating of Radioman 3c"
  -  1-3 - Navy Communication System -
  Principles and Method of Instruction In and Learning Code 
-  4-7 - Code Drill Exercises, Two and Three
  Character Groups Practice Work 
-  8 - Procedure 
-  9 - Procedure-Calling and Miscellaneous 
-  10 - Miscellaneous Procedure 
-  11 - Procedure - Answering and Miscellaneous 
-  12 - Procedure - Transmitting and Miscellaneous
-  13-15 - Duties of a Petty Officer - History of Radio, Penmanship and Typewriting, Wire Splicing, Switches, Circuit Breakers, Conductors and Non-conductors, Care and Management of Equipment and Power Machinery, Danger
    Zone Procedure
-  16-18 - Circuits of Navy Type Receivers - Circuits of Navy Type Transmitters, Vacuum Tube Detectors and
    Amplifiers
-  19-21 - Circuits of Arc Transmitters, Storage Batteries, Radiocompass
-  22-24 -Vacuum Tubes, Antennae, Loops, Magnetism, Theory of Sound
- " General Information for Radiomen of the Naval
  Reserve to Accompany Navy Training Course" - Radioman Third Class, 71
  pages
1941 - "Instructions for Use in Preparation For the Rating of Radioman 3c"
  -  1 - Safety and Operation Precautions, Organization, Telegraphy
-  2 - Typewriting
-  3 - Telegraphy
-  4 - Radio Communication Procedure
-  5 - Magnetism and Electricity
-  6 - Electron Theory, Ohm's and Kirchoff's Laws
-  7 - Batteries, Meters
-  8 - Fundamentals of Radio
-  9 - Radio Direction Finder
 Radioman 2C -
1925 - "Instructions and Exercises to be
Used in Preparation For Advancement to the Rating of Radioman 2c"
  -  1-3 - Routing of Traffic, Ohm's Law, Communication Regulations, International Procedure
-  4-6 - Current Electricity, Commercial Traffic Regulations, Instructions for Government Radiograms, Electromagnetism
-  7-9 - Codes, Pamphlets, Fire Protection, First Aid, Generators, Naval Organization
-  10-12 - Motors and Motor Generators, Machine Shop Practice, Tools, Lubrication, Rheostats and Starting Boxes
-  13-14 - General Rules Concerning Operation, Power Circuits
-  15-16 - Mission of the Navy Communication Service, Oscillatory Circuits
-  17-18 - Commercial Radio and Telegraph Practice, Sound Apparatus
-  19-22 - Duties of Petty Officer -A.C. and D.C. Measuring Instruments - Organization of Communication Service Afloat - Transformers and Condensers
-  23-24 - Arithmetic for Radiomen - Gasoline and Crude Oil Engines.
1940 - "Instructions for Use in Preparation For the Rating of Radioman
2c"
  -  1 - Mathematics
-  2 - Alternating Current Theory
-  3 - Circuit Elements
-  4 - Vacuum Tubes
-  5 - Receiver Principles
-  6 - Oscillator Circuits
-  7 - Power Amplifiers
-  8 - Transmitters, Antennae, and Sound
-  9 - Motor Starters
-  10 - Maintenance of Motors and Generators
-  11 - Mechanics
-  12 - Supervisory Duties
-  13 - Communication Instructions
 Radioman 1C
 1925 - "Instructions and Exercises to be
Used in Preparation For Advancement to the Rating of Radioman 1c"
  -  1-4 -  Duties of a Petty Officer, Compass Variation, Deviation, Azimuth, Calibration, Elementary Mechanics and Measurements - Plans, Blueprints, Sketches, Working Drawings, etc.
-  5-7 - Inductance, Capacity, Alternating Current, Ohm's Law as Applied to
    A.C.
-  8-10 - Radio Circuits, Materiel Organization Aboard Ship - Naval Tube Transmitters.
-  11-13 -Low and Intermediate Frequency Receivers, Portable Field Equipment, Radio
    compass
Radioman Chief
1929 - ""Instructions and Exercises for Radioman
1c in Preparation For the Rating of Chief Radioman"
  -  1 - The chief radioman
-  2 - General electrical knowledge - Wire calculations
-  3 - Alternating currents
-  4 - High-frequency measurements - Calibration of condensers
-  5 - Master heterodyne frequency meter
-  6 - Model XA 500-watt high-frequency tube transmitter
-  7 - High-frequency receiver - Model RG receiver
-  8 - Naval correspondence - Accountability for Government
    property - The G.S.K. system - Titles of stores and supplies - Custody
    receipts, surveys, etc.
-  9 - Precautions required in the design and operation of vacuum
    tube transmitters - Aircraft transmitter and receiver equipment
-  10 - Miscellaneous instruments - Piezo electric crystals -
    Radio frequence transmitter
-  11 - Calibration of sensitivity of receiver - Calibration of
    wave meter by comparison with standard wave meter
-  12 - Navigation
1940 - "Instructions for Use in Preparation For the Rating of Radioman
1c and Chief Radioman"
  -  1 - Three-phase Systems
-  2 - Power Supply
-  3 - Transmitters - Advanced
-  4 - Radio Telephony
-  5 - Frequency Measurements
-  6 - Wave Propagation and Field Strength Measurements
-  7 - Antennas
-  8 - Receivers and Receiver Servicing
-  9 - Radio Direction Finders
-  10 - Internal Combustion Engines
-  11 - Underwater Sound