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Carrier telephone systems

 

作者: J.A.H.Lloyd,  

 

期刊: Journal of the Institution of Electrical Engineers  （IET Available online 1929）
卷期: Volume 67, issue 389  

页码: 679-681

 

年代: 1929

 

DOI:10.1049/jiee-1.1929.0069

 

出版商: IEE

 

数据来源: IET

 

摘要:

The paper outlines the trend of development in carrier telephone systems in the past, the practical application of these systems, and the working of carrier terminal, repeater and associated equipments, and then summarizes the uses and advantages of these systems.

 

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