This is a fantastic home study course by R.E.T.S. covering TUBE RADIO ELECTRONICS (1947, 751 pages). This digital book in Adobe Acrobat .pdf format is designed to help you obtain a thorough understanding of electronics as they pertain to vacuum tube radios.

Here is what is covered:

Section 1 - Introduction to Modern Electronics
Section 2 - Simple Characteristics of Electricity - 1
Section 3 - Measuring Equipment
Section 4 - Simple Characteristics of Electricity - 2
Section 5 - Characteristics of Resistance
Section 6 - Vacuum Tubes, Diodes, & Transistors
Section 7 - Testing Tubes and Resistors with a Multimeter
Section 8 - Capacitance
Section 9 - Inductance
Section 10 - Rectifiers
Section 11 - Power Supplies
Section 12 - Power Supplies for Modern Electronic Equipment
Section 13 - Electromagnetic Waves
Section 14 - Electromagnetic Waves & the Broadcast System
Section 15 - Triodes, Tetrodes, Pentodes
Section 16 - Voltage and Power Amplifiers
Section 17 - Inductance, Capacitance, & Resistance in AC Circuits
Section 18 - Simple Characteristics of Reactive Circuits
Section 19 - Detectors
Section 20 - Coupling of Circuits
Section 21 - Oscillators & Oscillation Circuits
Section 22 - Mixer Operations & Input Circuits
Section 23 - Signal Tracing & Electronic Servicing
Section 24 - Transistors
Section 25 - Introduction to Frequency Modulation (FM)
Section 26 - Frequency Modulation II
Each section contains a Summary of key topics covered and each section is fully indexed.

If you are interested in understanding and repairing vintage radios this study course is an absolute must!

The original book was 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.