File:Soundmirror BK-401, tape recorder (29436846736).jpg

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Original file ‎(4,784 × 5,083 pixels, file size: 10.22 MB, MIME type: image/jpeg)

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Summary

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Author
Archives of the Finnish Broadcasting Company Yle
Photographer
Ruth Träskman
Description
Suomi: Soundmirror, nauhuri ja mikrofoni, 12.1.1949. Brush Soundmirror BK-401 oli ensimmäinen amerikkalainen magneettinauhuri (1946). Ennen toista maailmansotaa Brush valmisti magneettisia "nauhureita", mutta ne käyttivät pinnoitettua paperinauhaa, ei synteettistä nauhaa. "Todellinen" (synteettinen) magneettinauha kehitettiin 1930- ja 40-luvulla Saksassa, ja amerikkalaiset "löysivät" sen vuonna 1945, vaikka teknologia oli yleisesti tunnettu jo ennen sotaa.
English: Soundmirror, tape recorder and a microphone, 12.1.1949. The Brush Soundmirror BK-401 was the first American production magnetic tape recorder (1946). Prior to WW2, Brush did make magnetic "tape" recorders, but they used coated paper tape, rather than synthetic tape. The "real" (synthetic) magnetic tape was developed in the 1930s and 40s in Germany, and "discovered" by the Americans in 1945, although the technology was public well before the war began.
Date 12 January 1949
date QS:P571,+1949-01-12T00:00:00Z/11
Source https://www.flickr.com/photos/ylearkisto/29436846736/
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 sets
InfoField
  • Gadgets - Laitteita
Flickr tags
InfoField
  • tape recoder
  • Yle Archives
  • Yle Arkisto

Licensing

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Public domain
This photograph is in the public domain in Finland, because either a period of 50 years has elapsed from the year of creation or the photograph was first published before 1966. The section 49a of the Finnish Copyright Act (404/1961, amended 607/2015) specifies that photographs not considered to be "works of art" become public domain 50 years after they were created. The 50 years from creation protection period came into force in 1991. Before that the protection period was 25 years from the year of first publication according to the §16 of the law of protection of photographs of 1961. Material already released to public domain according to the 1961 law remains in public domain, and therefore all photographs (but not photographic works of art) released before 1966 are in the public domain. See Commons:Copyright rules by territory/Finland for details.

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This image was originally posted to Flickr by Archives of the Finnish Broadcasting Company Yle at https://flickr.com/photos/124495553@N05/29436846736. It was reviewed on 4 November 2016 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

4 November 2016

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Date/TimeThumbnailDimensionsUserComment
current16:40, 4 November 2016Thumbnail for version as of 16:40, 4 November 20164,784 × 5,083 (10.22 MB)Fæ (talk | contribs)Yle Archives - Yle Elävä arkisto, Set 72157648151472460, ID 29436846736, Original title Soudmirror, tape recorder

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