File:Bell telephone magazine (1922) (14569317490).jpg

Identifier: bellvol25telephonemag00amerrich (find matches)
Title: Bell telephone magazine
Year: 1922 (1920s)
Authors: American Telephone and Telegraph Company American Telephone and Telegraph Company. Information Dept
Subjects: Telephone
Publisher: (New York, American Telephone and Telegraph Co., etc.)
Contributing Library: Prelinger Library
Digitizing Sponsor: Internet Archive

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g apracticable repeater for its long distance circuits. The development of a satisfactory repeater was a primary objective oftelephone engineers in this country and throughout the world. Out of itwould come the telephones final conquest of distance on this earth. So there were hours of intense discussion among deForest, Jewett, and E. H. Colpitts about such things as the audion's capabilities, the tests to which it had already been submitted, its adaptability to commercial manufacture, the proprietary interests of certain others in it, and similar preliminaries. Finally, it was agreed that the audion should be tested by Bell Systemengineers. If it performed in accordance with the high hopes of all, Jewett assured deForest that he would recommend its purchase on the basis of terms the inventor had tentatively suggested. Late that afternoon when deForest said goodbye to his friends at 463 West Street, he left his audion behind him. He did not dream that he had also left the magic key with which a
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Lee deForest. Ihown Brothers His audion became the magic key which unlocked the doors of a new scientific age 86 Bell Telephone Magazine SUMMER little group of telephone engineerswould unlock the doors of a new scien-tific age. Jewett had a great ambition toachieve transcontinental telephony, towhich an effective repeater would beessential, and one of the young engi-neers on his staff, H. D. Arnold, wasworking on the problem. Soon after deForest left his audionto be tested, Jewett summoned Arnoldand showed him the device. The youngengineer silently and critically exam-ined the audion while his chief ex-plained its background. Finally Arnold declared, It will do It n He hastened to point out what stepshe thought would have to be taken toincrease the audions efficiency. Boththe outer circuit leading into the tubeand the inner circuit would have to beredesigned. It was weak in output be-cause the chamber had not been com-pletely evacuated, and the highervacuum could be obtained only with

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