File:General electric pliotron pp schenectady 3.jpg
![File:General electric pliotron pp schenectady 3.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/7/74/General_electric_pliotron_pp_schenectady_3.jpg/285px-General_electric_pliotron_pp_schenectady_3.jpg?20131101182430)
Original file (357 × 750 pixels, file size: 291 KB, MIME type: image/jpeg)
Captions
Captions
General Electric Pliotron
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Photographer |
Staff photographer |
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Title |
General Electric Pliotron |
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Description |
General Electric Pliotron: Small glass tube with metal and plastic components; main body of the tube is tear drop in shape and tapers at the bottom into a plastic fitting that has four circular pins; inside the tube are two vertical glass rods that support a series of metal grids and small electrodes. Invented by Irving Langmuir in 1915, the Pliotron is the first true vacuum triode (a three electrode vacuum tube). |
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Date | 13 June 2007 | ||||||||||||||||||||
Collection |
institution QS:P195,Q5090408 |
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Accession number |
Schenectady 3 |
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Notes | Image downloaded with permission from the Science History Institute, as part of the Wikipedian in Residence initiative. | ||||||||||||||||||||
Source | Science History Institute | ||||||||||||||||||||
Permission (Reusing this file) |
![]() ![]() ![]() This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. Attribution: Science History Institute
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:24, 1 November 2013 | ![]() | 357 × 750 (291 KB) | Mary Mark Ockerbloom (talk | contribs) | {{Information |Description ={{en|1=General Electric Pliotron Small glass tube with metal and plastic components; main body of the tube is tear drop in shape and tapers at the bottom into a plastic fitting that has four circular pins; inside the tub... |
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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.
Image title |
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Camera manufacturer | OLYMPUS IMAGING CORP. |
Camera model | SP510UZ |
Exposure time | 1/30 sec (0.033333333333333) |
F-number | f/2.8 |
ISO speed rating | 511 |
Date and time of data generation | 22:52, 13 June 2007 |
Lens focal length | 6.3 mm |
Orientation | Normal |
Horizontal resolution | 150 dpi |
Vertical resolution | 150 dpi |
Software used | Adobe Photoshop Elements 2.0 |
File change date and time | 11:23, 29 January 2009 |
Y and C positioning | Co-sited |
Exposure Program | Creative program (biased toward depth of field) |
Exif version | 2.21 |
Date and time of digitizing | 22:52, 13 June 2007 |
Meaning of each component |
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Image compression mode | 2 |
APEX exposure bias | 0 |
Maximum land aperture | 2.97 APEX (f/2.8) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
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 | 0 |
Scene capture type | Standard |
Scene control | High gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
IIM version | 2 |