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Sprayberry - Complete Radio Servicing Course
SPRAYBERRY RADIO SERVICING COURSE published by the Sprayberry Academy of Radio, Chicago, IL. This was a correspondence course back in the late 1940s through early 1950s where you would receive booklets in the mail every other week and teach yourself how to repair radios. There is a wealth of information covered in a total of 2,758 fully bookmarked pages!!! At the end of each ND and SC lessons there are lesson questions that are structured to help reinforce what you have learned. For anyone just getting started in the exciting hobby of antique radio repair this course is an absolute must! Here is what you get:
CONTENTS
ND Lessons
Lesson 1 - Introduction to Radio
Lesson 2 - Basic Electricity
Lesson 3 - Lines of Force
Lesson 4 - Fundamentals of Transmission and Reception
Lesson 5 - How to Read Radio Diagrams and Symbols
Lesson 6 - Resistance: A Property of All Electric Circuits
Lesson 7 - Coils in Radio Circuits
Lesson 8 - Condensers in Radio Circuits
Lesson 9 - Coils and Condensers in Combination - Resce
Lesson 10 - Radio Meters, Test Instruments
Lesson 11 - Fundamentals of Radio Tubes - Rectifier Circuits
Lesson 12 - Rectifier Tubes - Tube Standards and Ratings
Lesson 13 - How A Radio Tube Makes A Weak Signal Stronger
Lesson 14 - Vacuum Tube Amplification At High Frequencies
Lesson 15 - Amplification at Low Frequencies
Lesson 16 - Types of A.F. Amplifiers - Amplifier Classes
Lesson 17 - How an RF Signal is Detected
Lesson 18 - Speakers for Radio
Lesson 19 - Power Transformers for Radio
Lesson 20 - Choke Coils, Filter Systems and Voltage Dividers
Lesson 21 - A Six Color Story of the Tuned Radio Frequency Receiver
Lesson 22 - The Superheterodyne Receiver
Lesson 23 - Superheterodyne Oscillator Tracking and Super Control Tubes
Lesson 24 - Selectivity Factors of Tuned Circuits
Lesson 25 - Automatic Volume or Sensitivity Controls
Lesson 26 - Six Color Story of the Superheterodyne
Lesson 27 - Improvements Which Simplify Receiver Operation and Decibels
Lesson 28 - Multiple Band Receivers
Lesson 29 - Microphones and Phonograph Pick-Up Units
Lesson 30 - Transmission Lines, Pads and Attenuators
Lesson 31 - Public Address or AF Sound Systems
Lesson 32 - How Sound is Employed in the Movies
Lesson 33 - How the Qualities of Sound Reproduction are Controlled
Lesson 34 - Photo-Electronics
Lesson 35 - Practical Applications of Photo-Electronics
SC Lessons
Lesson 1 Your Shop Work Bench
Lesson 2 How Meter Measurements Indicate Radio Receiver Defects
Lesson 3 How to Make Continuity Tests on Radio Circuits
Lesson 4 The Vacuum Tube Voltmeter and Its Applications
Lesson 5 How to Develop A Testing Technique
Lesson 6 How to Apply the Signal Generator
Lesson 7 How to Make Radio Frequency Tuning Adjustments
Lesson 8 How to Make Superheterodyne Tuning Adjustments
Lesson 9 How to Adjust and Repair Automatic Tuning Circuits
Lesson 10 How to Repair AVC, Q and AFC Circuit Defects
Lesson 11 Practical Methods of Condenser Testing
Lesson 12 How to Test for Resistor Defects
Lesson 13 How to Test for Defects in Transformers, Chokes and Field Coils
Lesson 14 How Radio Tubes Are Tested
Lesson 15 How to Test for Defects in Speakers
Lesson 16 How to Make Volume Control Replacements
Lesson 17 How to Correct Defects Which Cause Intermittent Reception
Lesson 18 How to Correct for Hum in Receivers and Amplifiers
Lesson 19 How to Eliminate Receiver Interference
Lesson 20 How to Install and Repair Automobile Radio Receivers
Lesson 21 How to Repair DC- AC-DC Receivers
Lesson 22 How to Repair Battery Operated Receivers
Lesson 23 How to Repair Short-Wave and All-Wave Receivers
Lesson 24 Principles of Frequency Modulation Reception
Lesson 25 Servicing FM Receivers
Lesson 26 Servicing by Signal Tracing and Signal Injection
Lesson 27 Audio Frequency Signal Tracing
Lesson 28 Public Address and AF Amplifiers
Lesson 29 Pick-Up Units and Automatic Record Changers
Lesson 30 The Cathode Ray Oscilloscope Basic Principles
Lesson 31 The Cathode Ray Oscilloscope Dynamic Circuit Testing
Lesson 32 The Cathode Ray Oscilloscope Visual Alignment
Lesson 33 Television Basic Principles
Lesson 34 Television RF Circuits
Lesson 35 Television Video and Audio Circuits
Lesson 36 Television Sweep Circuits
Lesson 37 Television Adjustment and Alignment
Lesson 38 Television Repair Procedures
Radio Business Builders
Your Repair Bench & Service Shop
Getting Started in Radio Repairs
How to Charge for Radio Repair
Continuity Circuit Testing
How to Solder Radio Parts
How to Test Radio Tubes, Pilot Lights and Ballast Resistors
Customer Satisfaction Cleaning & Overhauling
How to Repair Moving Parts of Radio Receivers
How to Install an Antenna System
How to Connect Headphones to Receivers & Amplifiers
How to Install A Tuning Indicator
How to Install an All-Wave Antenna System
How to Locate A Receiver for Best Sound Reproduction
How to Install One Antenna for Several Receivers
How to Install A Tone Control
How to Install Intercommunication Systems
How to Use Electric Time Switches & Photo Cells
How to Get Maximum Use from Radio Diagrams
How to Identify the Separate Stages of A Radio Receiver
How to Locate Sources of Receiver Hum
How to Adjust the Tuned Circuits of TRF & Neutrodyne Receivers
How to Adjust the Tuned Circuits of A Superheterodyne Type Receiver
How to Repair and Refinish Radio Cabinets
Common Troubles in AC-DC & Battery Operated Receivers
How to Get Practical Radio Experience
How to Add Push Button Tuning to A Radio Receiver
How to Install A Phonograph Pick-Up Unit
Hints on Farm Receivers and Farm Power Plants
How to Filter a Power Line for Minimum Noise
How to Compensate for Line Voltage Variations
How to Use Batteries of All Types
How to Use Microphones with Radio Receivers
How to Make and Use an Ohmmeter
How to Identify Power Transformer Windings
Hearing Aids for the Hard of Hearing
Phonograph Pickups, Motors & Turntables
How to Reset Push Buttons
Service Hints on Record Changers
Installing A New Chassis in an Old Radio Cabinet
Repairing Electrical Heating Appliances
Repairing Small Electric Motors
Radio Service Bulletins
Bulletin No. 1 What to Do upon Entering a Home Where Radio Work is to Be Done
Bulletin No. 2 General Procedure to Follow in Testing a Receiver in the Home
Bulletin No. 3 When to Take a Receiver to the Shop and When to Make the Repairs in the Owners home
Bulletin No. 4 How to Remove the Chassis and Speaker from the Cabinet Preparatory to Taking Them to the Shop for Repairs
Bulletin No. 5 How to Locate the Inoperative Stage
Bulletin No. 6 How to Test Amplifier Stages with A Voltmeter
Bulletin No. 7 How to Make Simple Observation Tests
Bulletin No. 8 How to Test Radio Tubes by the Comparison Method
Bulletin No. 9 How to Adjust the Tuned Circuits of A Tuned Radio Frequency Receiver
Bulletin No. 10 Neutrodyne Circuit Adjustments
Bulletin No. 11 Superheterodyne Circuit Adjustments
Bulletin No. 12 Automobile Radio Testing Hints
Bulletin No. 13 Battery Operated Receiver Testing
Bulletin No. 14 How to Make a Radio Chassis Work Bench Holder
Bulletin No. 15 How to Test Parts While Connected in Circuits
Bulletin No. 16 How to arrange Your Shop Work Bench for Best Use of Equipment
Bulletin No. 17 How to Remove Dust and Dirt from Receivers
Bulletin No. 18 How to Install and Maintain Winchargers
Bulletin No. 19 How to Add Push Button Tuning to Receivers
Bulletin No. 20 How to Test Receivers with the Signal Generator
Bulletin No. 21 How to Make Simple emergency Tests
Bulletin No. 22 How to Make Point to Point Continuity Tests
Radio Service Shortcuts Handbook and Reference Guide for the Serviceman and Student (82 pages)
Contents
Section 1 Alignment (Tuning)
Section 2 Auxiliary Circuits
Section 3 Dead Receiver
Section 4 Distortion (Also see Noise, Rattling)
Section 5 Fading
Section 6 Howl
Section 7 Hum
Section 8 Interference
Section 9 Intermittent Reception
Section 10 Mechanical Defects
Section 11 Motorboating (Put Put Sounds)
Section 12 Noise
Section 13 Parts Testing
Section 14 Rattling-Buzzing
Section 15 Ringing (Micrphonic Feedback)
Section 16 Shock
Section 17 Squeal (Oscillation, Heterodyne)
Section 18 Tuning
Section 19 Visible Defects
Section 20 Volume
Sprayberry Dictionary of Radio (85 pages)
From the Foreword:
This radio dictionary has been prepared for those enrolled in the Sprayberry Academy of Radio, and for students of radio in general. It contains all technical terms employed in my courses and which will be encountered in most radio studies several hundred more words than will be in any similar dictionary.
With the knowledge and experience you gain from this course it should be possible for you to pursue a rewarding and satisfying hobby in antique radio restoration.
The original books were scanned and converted into this digital file in Adobe Acrobat .pdf format. In order to view this file you will need to have Adobe Acrobat Reader installed on your computer.
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