File:Valvola termoionica triodo di Round per radiotrasmissione - Museo scienza tecnologia Milano 02189.jpg
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
![File:Valvola termoionica triodo di Round per radiotrasmissione - Museo scienza tecnologia Milano 02189.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/9/90/Valvola_termoionica_triodo_di_Round_per_radiotrasmissione_-_Museo_scienza_tecnologia_Milano_02189.jpg/449px-Valvola_termoionica_triodo_di_Round_per_radiotrasmissione_-_Museo_scienza_tecnologia_Milano_02189.jpg?20160521063037)
Size of this preview: 449 × 599 pixels. Other resolutions: 180 × 240 pixels | 360 × 480 pixels.
Original file (800 × 1,067 pixels, file size: 136 KB, MIME type: image/jpeg)
File information
Structured data
Captions
Captions
Add a one-line explanation of what this file represents
valvola termoionica triodo di Round per radiotrasmissione - Triodo di Round.
(![]() ![]() ![]() |
||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Author |
Marconi Company (costruttore) |
|||||||||||||||||||||||
Title |
valvola termoionica triodo di Round per radiotrasmissione - Triodo di Round. |
|||||||||||||||||||||||
Description |
Italiano: È composto da una tubo in vetro mantenuto sotto vuoto al cui interno vi sono tre elettrodi (griglia, filamento e placca). Il tubo è inserito in un castello di alluminio (?) che serve da protezione da urti e permette un facile inserimento nei circuiti dell'apparato di trasmissione radio.
|
|||||||||||||||||||||||
Date |
between 1914 and 1920 date QS:P571,+1950-00-00T00:00:00Z/7,P1319,+1914-00-00T00:00:00Z/9,P1326,+1920-00-00T00:00:00Z/9 |
|||||||||||||||||||||||
Medium | metallo | |||||||||||||||||||||||
Dimensions |
height: 22 cm (8.6 in); width: 10 cm (3.9 in); depth: 12 cm (4.7 in) dimensions QS:P2048,22U174728 dimensions QS:P2049,10U174728 dimensions QS:P5524,12U174728 Weight: 500 g (17.64 oz) |
|||||||||||||||||||||||
Collection |
institution QS:P195,Q947082 |
|||||||||||||||||||||||
Accession number |
2189 |
|||||||||||||||||||||||
Object history | Gnesutta, Eugenio | |||||||||||||||||||||||
References | ||||||||||||||||||||||||
Source/Photographer | Catalogo collezioni (in it). Museoscienza.org. Museo nazionale della scienza e della tecnologia Leonardo da Vinci, Milano. | |||||||||||||||||||||||
Permission (Reusing this file) |
![]() ![]() ![]() This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 06:30, 21 May 2016 | ![]() | 800 × 1,067 (136 KB) | Federico Leva (WMIT) (talk | contribs) | {{ICCD TRC | institution = {{institution:Museoscienza}} | permission = {{cc-by-sa-4.0}} | RSR1 = Soresini, Franco | CTP = Industria, manifattura, artigianato | AUT1R = costruttore | BIB2G = Marconi : una comunicazione lunga un secolo | CMPD = 2006 |... |
You cannot overwrite this file.
File usage on Commons
The following page uses 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.
Image title | OLYMPUS DIGITAL CAMERA |
---|---|
Camera manufacturer | OLYMPUS IMAGING CORP. |
Camera model | u-miniD,Stylus V |
Exposure time | 1/30 sec (0.033333333333333) |
F-number | f/3.5 |
ISO speed rating | 100 |
Date and time of data generation | 00:00, 21 April 2006 |
Lens focal length | 5.95 mm |
Orientation | Normal |
Horizontal resolution | 314 dpi |
Vertical resolution | 314 dpi |
Software used | ACD Systems Digital Imaging |
File change date and time | 09:45, 16 May 2007 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | Unknown date |
Meaning of each component |
|
APEX exposure bias | 0 |
Maximum land aperture | 3.61 APEX (f/3.49) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, auto mode |
DateTime subseconds | 484 |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |