File:General electric pliotron pp schenectady 3.jpg

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File:General electric pliotron pp schenectady 3.jpg - Wikipedia

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General Electric Pliotron (

)

Photographer

Staff photographer

Title

General Electric Pliotron

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).

Date

13 June 2007

Collection

Science History Institute

	Location	315 Chestnut Street, Philadelphia, Pennsylvania, 19106
	Coordinates	39° 56′ 56.04″ N, 75° 08′ 47.4″ W
	Established	1982
	Website	http://www.sciencehistory.org/
	Authority file	: Q5090408 VIAF: 4412163159960301640007 ISNI: 0000000121917991 LCCN: no2021104345 BNF: 16931028s NKC: ko2010557072 WorldCat

Accession number

Schenectady 3

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 was provided to Wikimedia Commons by the Science History Institute as part of a cooperation project.

English ∙ 日本語 ∙ +/−

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File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	18:24, 1 November 2013		357 × 750 (291 KB)	Mary Mark Ockerbloom	{{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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Usage on ja.wikipedia.org
- オーディオン管
Usage on ru.teknopedia.teknokrat.ac.id
- Аудион
Usage on zh.teknopedia.teknokrat.ac.id
- 歐文·朗繆爾

Metadata

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Image title	OLYMPUS DIGITAL CAMERA
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	Y Cb Cr does not exist
Image compression mode	2
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

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copyrighted

copyright license

Creative Commons Attribution-ShareAlike 3.0 Unported

inception

13 June 2007

File history

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Metadata