Title :
Instruments for the new telephone sets
Author_Institution :
Bell Telephone Laboratories, Inc., New York, N. Y.
Abstract :
Transmitters and receivers for use at subscribers´ telephone stations have been designed which not only materially improve transmission but also simplify manufacture and facilitate maintenance. This paper discusses these improvements and describes some of the new design technique employed in their development.
Keywords :
Carbon; Electrodes; Instruments; Receivers; Resistance; Telephone sets; Transmitters;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1938.6430961
