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Up for sale is a complete vintage lot of 8 International Correspondence Schools (ICS) / International Textbook Company home-study booklets focusing on early electronic engineering, vacuum tubes, and radio technology.
Printed during the WWII era, this collection includes 1941 and 1942 printings. Most covers indicate "Edition 1".
Complete 8-Booklet Set Includes:
• Radio Tubes (Booklet 3001, 1941 Edition)
• Theory of Radio Receivers (Booklet 3502)
• Vacuum-Tube Amplifiers (Booklet 3503-2)
• Vacuum-Tube Oscillators (Booklet 3504)
• Cathode-Ray Tubes (Booklet 3505)
• Methods of Testing Vacuum Tubes (Booklet 3506)
• Principles of Vacuum-Tube Design (Booklet 3507)
• Vacuum-Tube Detectors (Booklet 3508)
Condition: Good vintage condition. Pages are intact with clean text. Cover wear, minor creasing, and aging consistent with books from the 1940s (see photos for exact condition details). Perfect addition for any ham radio operator, vintage tech collector, or electronics hobbyist!
Ships quickly and securely. Please reach out with any questions.
