File:Western Electric VT-1 Triode Vacuum Tube.jpg
Original file (2,633 × 3,291 pixels, file size: 6.16 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionWestern Electric VT-1 Triode Vacuum Tube.jpg |
English: Western Electric VT-1 Triode Receiver
During World War I, the US. made considerable advances in vacuum tubes for radio transmission and reception. The VT-1, developed in 1917, modulated the complex radio waves of voice transmission back into audio. Though radio voice communications were an important wartime advance, it saw almost no combat use. Picture taken at the National Air and Space Museum's Steven F. Udvar-Hazy Center in Chantilly, Virginia, USA. Gift of Gordon E. White |
Date | |
Source | Own work |
Author | Sanjay Acharya |
Licensing
[edit]- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 04:38, 3 January 2018 | 2,633 × 3,291 (6.16 MB) | Sanjay ach (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use 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.
Camera manufacturer | SONY |
---|---|
Camera model | DSC-RX10M4 |
Exposure time | 1/50 sec (0.02) |
F-number | f/3.5 |
ISO speed rating | 800 |
Date and time of data generation | 12:04, 28 December 2017 |
Lens focal length | 24.8 mm |
Orientation | Normal |
Horizontal resolution | 350 dpi |
Vertical resolution | 350 dpi |
Software used | DSC-RX10M4 v1.00 |
File change date and time | 12:04, 28 December 2017 |
Exposure Program | Normal program |
Exif version | 2.31 |
Meaning of each component |
|
Image compression mode | 4 |
APEX brightness | 1.92734375 |
APEX exposure bias | 0 |
Maximum land aperture | 3.614709851552 APEX (f/3.5) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 68 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Lens used | |
Date and time of digitizing | 12:04, 28 December 2017 |
Rating (out of 5) | 0 |
IIM version | 4 |