Radio Service Man's Handybook: With Addenda Data Sheets;

In 1931, the year that this volume was first published, radio was growing rapidly. Factories all over the world were manufacturing receivers. But the information needed by the service technican who was expected to repair them, whenever they broke down, was hard to come by. So Hugo Gernsback decided to assemble a cross-section of articles that he had published in a form that would be useful to those service men. The result was this book, originally produced in loose-leaf form and bound with three posts and screws into an absolutely vital document. Complete with an introduction by Hugo and an opening article by John F. Rider, it is a classic that many old timers and collectors of old radio receivers will want to own.