File:Bell telephone magazine (1922) (14775880013).jpg

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Description
English:

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

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
recordings were of thevariable area type. Early in 1913, H. A. Frederickbegan work upon instruments fortransmission of music, and soon there-after the engineers Crandall andKranz began construction of anelectro-magnetic phonograph repro-ducer. Experiments were continued with both film and disc. Most of theseengineers pursued uncharted path-ways. Their original notebooks, stillpreserved, reveal the minutely de-tailed and frequently dramatic resultsof this research. Improving the Microphone Meanwhile, a number of youngengineers had been welcomed intoWestern Electrics Engineering De-partment : alert, ambitious youngsters,eager to put their university-acquiredknowledge to practical use. Amongthese newcomers was Edward C.Wente, who arrived in 1914. When young Wente had been therea few months, he was given a micro-phone by Arnold and Crandall. It wasthe highest quality electro-magnetictransmitter known to telephone engi-neers; it represented the cumulative 88 Bell Telephone Magazine SUMMER
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^3-K

Note About Images

DeForest's audion as submitted to Dr. Jewett in 1912 (left), and the high-vacuum tube developed in 1913 for the first telephone repeater
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27 July 2014

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This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/14775880013. It was reviewed on 18 September 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

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