File:7JP4 Electrostatic Picture Tube Side View (late 1940).jpg
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Summary
[edit]Description7JP4 Electrostatic Picture Tube Side View (late 1940).jpg |
English: 7JP4 picture tube was used extensively in small low cost televisions made and sold in the United States during the late 1940's. It is electrostatic in design, soon made obsolete by electromagnetic deflection television. |
Date | |
Source | Own work (Original text: Photo of my own tube collection) |
Author | Engradio |
Licensing
[edit]Engradio at English Wikipedia, the copyright holder of this work, hereby publishes it under the following licenses:
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: Engradio at English Wikipedia
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Original upload log
[edit]Transferred from en.wikipedia to Commons by Kelly using CommonsHelper.
The original description page was here. All following user names refer to en.wikipedia.
- 2013-04-05 04:23 Engradio 3872×2592× (2524206 bytes) Uploading a self-made file using [[Wikipedia:File_Upload_Wizard|File Upload Wizard]]
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:41, 23 February 2014 | 3,872 × 2,592 (2.41 MB) | File Upload Bot (Magnus Manske) (talk | contribs) | Transfered from en.wikipedia by User:Kelly using CommonsHelper |
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Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D40X |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/3.8 |
ISO speed rating | 200 |
Date and time of data generation | 18:38, 4 April 2013 |
Lens focal length | 22 mm |
Orientation | Normal |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Ver.1.00 |
File change date and time | 18:38, 4 April 2013 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.21 |
Date and time of digitizing | 18:38, 4 April 2013 |
Meaning of each component |
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Image compression mode | 2 |
APEX exposure bias | 0 |
Maximum land aperture | 3.7 APEX (f/3.61) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, strobe return light detected, auto mode |
DateTime subseconds | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 33 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Structured data
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4 April 2013
image/jpeg
47b2e98c2b9425531092f1c861f583c1a26e6452
2,524,206 byte
2,592 pixel
3,872 pixel
200
0.016666666666667 second
3.8
22 millimetre
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