File:California Digital Library (IA abcofvacuumtubes00lewirich).pdf

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search
Go to page
next page →
next page →
next page →

Original file ‎(675 × 1,070 pixels, file size: 14.32 MB, MIME type: application/pdf, 140 pages)

Captions

Captions

Add a one-line explanation of what this file represents

Summary[edit]

Author
Lewis, Elmer Hugh, 1889-
Title
The A B C of vacuum tubes in radio reception; an elementary and practical book on the theory and operation of vacuum tubes as detectors and amplifiers. Explains non-mathematically the fundamental principles upon which all vacuum tube circuits are based. Includes practical circuits and practical questions and answers. It is written especially for the beginner. All electrical and radio terms are fully explained
image of artwork listed in title parameter on this page
Publisher
New York, Norman W. Henley Pub. Co.
Description
Subjects: Vacuum-tubes; Radio; Radio
Language English
Publication date 1922
publication_date QS:P577,+1922-00-00T00:00:00Z/9
Current location
IA Collections: cdl; americana
Accession number
abcofvacuumtubes00lewirich
Authority file  OCLC: 1038746088
Source
Internet Archive identifier: abcofvacuumtubes00lewirich
https://archive.org/download/abcofvacuumtubes00lewirich/abcofvacuumtubes00lewirich.pdf

Licensing[edit]

Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:California_Digital_Library_(IA_abcofvacuumtubes00lewirich).pdf

File history

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

Date/TimeThumbnailDimensionsUserComment
current12:12, 4 October 2020Thumbnail for version as of 12:12, 4 October 2020675 × 1,070, 140 pages (14.32 MB)Fæ (talk | contribs)California Digital Library abcofvacuumtubes00lewirich (User talk:Fæ/IA books#Fork20) (batch 1000-1924 #258)

You cannot overwrite this file.

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:California_Digital_Library_(IA_abcofvacuumtubes00lewirich).pdf&oldid=845907119"