Sprayberry Academy of Radio Courses

Pueblo: Sprayberry Academy of Radio, 1945. — 32 lectures. Lectures on General radio engineering for beginners.Lesson ND-01, Introduction To Radios First Principles
Lesson ND-02, The Two Basic Forms Of Electricity
Lesson ND-03, How Lines Of Force Are Applied In Radio And Television
Lesson ND-04, The Elements Of Radio Transmission And Reception
Lesson ND-05, How To Read Radio Diagrams And Symbols
Lesson ND-06, Resistance As a Property Of All Electrical Circuits
Lesson ND-07X1, Radio Construction and Repair Work
Lesson ND-07X2, Radio Construction and Repair Work
Lesson ND-07X3, Radio Construction and Repair Work
Lesson ND-11, Fundamentals Of Radio Tubes - Rectifier Circuits
Lesson ND-12, Rectifier Tubes - Tube Standards And Ratings
Lesson ND-13, How A Radio Tube Makes A Weak Signal Stronger
Lesson TV-14, How Radio Tubes Are Tested
Lesson ND-15, Amplification At Low Frequencies
Lesson ND-16, Types of A.F. Amplifiers, Amplifier Classes
Lesson ND-17, How An R.F. Signal Is Demodulated, Detected, Rectified
Lesson ND-18, Speakers For Radio
Lesson ND-19, Power Transformers For Radio
Lesson ND-20, Choke Coils - Filter Systems and Voltage Dividers
Lesson ND-21, A Six Color Story of the Tuned Radio Frequency Receiver
Lesson ND-21 Six Color Story of the TRF Receiver.Spayberry.
Lesson ND-22, The Superheterodyne Receiver
Lesson ND-23, Superheterodyne Oscillator Tracking and Super Control Tubes
Lesson ND-24, How Superheterodyne Circuits Are Made To Reject Unwanted Signals
Lesson ND-25, Automatic Volume or Sensitivity Controls
Lesson ND-26, Six Color Story of the Superheterodyne with AVC
Lesson ND-27, Improvements Which Simplify Receiver Operation and Decibels
Lesson ND-28, Multiple Band Receivers
Lesson ND-29, Microphones and Phonograph Pick-Up Units
Lesson ND-30, Transmission Lines, Pads and Attenuators
Lesson ND-31, Public Address or AF Sound Systems
Lesson ND-32, How Sound Is Employed In the Movies