Wikimedia Commons

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

Original file (1,634 × 668 pixels, file size: 331 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

edit



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
Text Appearing After Image:
^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
Date
Source

https://www.flickr.com/photos/internetarchivebookimages/14775880013/

Author Internet Archive Book Images
Permission
(Reusing this file)		 At the time of upload, the image license was automatically confirmed using the Flickr API. For more information see Flickr API detail.
Flickr tags
InfoField
Flickr posted date
InfoField
27 July 2014

Licensing

edit
This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as:
  1. The copyright is in the public domain because it has expired;
  2. The copyright was injected into the public domain for other reasons, such as failure to adhere to required formalities or conditions;
  3. The institution owns the copyright but is not interested in exercising control; or
  4. The institution has legal rights sufficient to authorize others to use the work without restrictions.

More information can be found at https://flickr.com/commons/usage/.

Please add additional copyright tags to this image if more specific information about copyright status can be determined. See Commons:Licensing for more information.
This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

العربية ∙ беларуская (тарашкевіца) ∙ čeština ∙ Deutsch ∙ Ελληνικά ∙ English ∙ español ∙ français ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ 한국어 ∙ македонски ∙ Nederlands ∙ português ∙ русский ∙ sicilianu ∙ slovenščina ∙ ไทย ∙ Tiếng Việt ∙ 中文（简体） ∙ 中文（繁體） ∙ +/−

Flag of the United States
Flag of the United States
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.

18 September 2015

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current01:21, 18 September 2015Thumbnail for version as of 01:21, 18 September 20151,634 × 668 (331 KB)Fæ (talk | contribs)== {{int:filedesc}} == {{subst:chc}} {{information |description={{en|1=<br> '''Identifier''': bellvol25telephonemag00amerrich ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&profile=default&fulltext=Search&search=insource%3A%2Fbellvo...

You cannot overwrite this file.

The following page uses this file:

File usage on other wikis

The following other wikis use this file:

  • Usage on www.wikidata.org
Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Bell_telephone_magazine_(1922)_(14775880013).jpg&oldid=867864962"