9781330634707 - Synchronous and Other Multiple Telegraphs (Classic Reprint): Some Methods of Obtaining Independent Telegraph Graph Circuits on a Single Wire Both With and Without S... (4 risultati)

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condizione: New. Print on Demand. This book explores ingenious methods developed by the author to use direct and alternating currents simultaneously on a single wire, doubling its telegraphic service without compromising advantages of standard Morse operations. The text explores the need for such a system and traces its development from its inception, detailing the fundamental principles, instruments, and circuits used to separate and utilize the two currents. Beyond theory, the author provides measured readings taken under working conditions, offering practical insights into the system's operation in various conditions. The author advocates for the use of special wires for synchronizing purposes, describing one method of controlling synchronous motors and providing three methods for motors to operate in opposite directions on the same wire. The book concludes with descriptions of practical Morse systems operating by synchronous methods, showing how circuits operated over trunk lines may be distributed to different points. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Condizione: Sehr gut. Zustand: Sehr gut | Sprache: Englisch | Produktart: Bücher | Keine Beschreibung verfügbar.