The Bell System Technical Journal, 1938, Vol. 17: A Journal Devoted to the Scientific and Engineering Aspects of Electrical Communication (Classic Reprint) - Hardcover

King, R. W.

Hardcover

ISBN 10: 0266566480 ISBN 13: 9780266566489

Verlag: Forgotten Books, 2018

Inhaltsangabe

Excerpt from The Bell System Technical Journal, 1938, Vol. 17: A Journal Devoted to the Scientific and Engineering Aspects of Electrical Communication

During the last few years new methods and apparatus have been developed and radical changes made that greatly improve the situa tion both from an economic and operating standpoint. The new measuring instruments are much less costly than the types heretofore available and are as stable in operation and as simple to use as am meters and voltmeters. In the local plant the decrease in cost and complexity and improvement in operating methods has justified per manent installations in many of the larger offices while the newer forms of portable apparatus are being much more extensively distributed than earlier types. For the toll plant the improvement consists in doing away largely with the centralized transmission testing point. The regular test board force now can make transmission measure ments at their test boards and the r'epeater attendants can measure the performance of the repeaters while working on them. The work is so simple and the maintenance forces are so well trained that a special transmission testing force is not required.

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Details zur Ausgabe

• Verlag: Forgotten Books
• Erscheinungsdatum: 2018
• Sprache: Englisch
• ISBN 10: 0266566480
• ISBN 13: 9780266566489
• Einband: Tapa dura
• Anzahl der Seiten: 696
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