File:Valvola termoionica doppio diodo, triodo amplificatore e rivelatore - Museo scienza tecnologia Milano 09898.jpg
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
Size of this preview: 800 × 600 pixels. Other resolutions: 320 × 240 pixels | 640 × 480 pixels | 1,024 × 768 pixels.
Original file (1,024 × 768 pixels, file size: 167 KB, MIME type: image/jpeg)
File information
Structured data
Captions
valvola termoionica doppio diodo, triodo amplificatore e rivelatore - DH63/6Q7G. ( ) | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Author |
Marconi Company (costruttore) |
|||||||||||||||||||||||
Title |
valvola termoionica doppio diodo, triodo amplificatore e rivelatore - DH63/6Q7G. |
|||||||||||||||||||||||
Description |
Italiano: È composta da uno zoccolo in plastica (?bachelite?) con 7 piedini in metallo disposti lungo la circonferenza e un piedino/guida in plastica centrale (zoccolo octal). Sopra lo zoccolo un bulbo cilindrico in vetro sotto vuoto contiene anodi, catodi, griglia e filamenti. Infine nella parte alta del bulbo è presente un terminale metallico.
|
|||||||||||||||||||||||
Date |
between 1935 and 1950 date QS:P571,+1950-00-00T00:00:00Z/7,P1319,+1935-00-00T00:00:00Z/9,P1326,+1950-00-00T00:00:00Z/9 |
|||||||||||||||||||||||
Medium | plastica | |||||||||||||||||||||||
Dimensions |
height: 11 cm (4.3 in); diameter: 3 cm (1.1 in) dimensions QS:P2048,11U174728 dimensions QS:P2386,3U174728 Weight: 50 g (1.76 oz) |
|||||||||||||||||||||||
Collection |
institution QS:P195,Q947082 |
|||||||||||||||||||||||
Accession number |
9898 |
|||||||||||||||||||||||
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 | 06:38, 21 May 2016 | 1,024 × 768 (167 KB) | Federico Leva (WMIT) (talk | contribs) | {{ICCD TRC | institution = {{institution:Museoscienza}} | permission = {{cc-by-sa-4.0}} | BIB3D = 2004 | RSR1 = Soresini, Franco | CTP = Industria, manifattura, artigianato | AGG1D = 2011 | AUT1R = costruttore | BIB2G = Radiomanuale | AUT1N = Marcon... |
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 | Unknown date |
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 | 14:26, 11 October 2006 |
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 | 0 |
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 |