File:CKUA Microphone, National Music Centre.jpg
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Original file (2,448 × 3,264 pixels, file size: 2.87 MB, MIME type: image/jpeg)
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DescriptionCKUA Microphone, National Music Centre.jpg |
English: Early microphone used at radio station CKUA, University of Alberta, Edmonton, Canada, the first educational broadcasting station in North America and a Canadian cultural icon, on display in Canada's National Music Centre museum. The microphone is a Western Electric Model 357 double-button carbon microphone, developed around 1921, which was extremely widely used in the 1920s for broadcasting because of its low distortion. It is often called the "ring and spring" microphone because the small cylindrical pickup unit was suspended at the center of a metal ring using springs to isolate it acoustically from its supports. |
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Date | |||
Source | Flickr: CKUA Microphone | ||
Author | Raymond Wong | ||
Permission (Reusing this file) |
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
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Camera location | 51° 02′ 34.2″ N, 114° 03′ 37.8″ W | View this and other nearby images on: OpenStreetMap | 51.042833; -114.060500 |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 22:07, 4 June 2013 | 2,448 × 3,264 (2.87 MB) | Clusternote (talk | contribs) |
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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 | CKUA Microphone |
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Camera manufacturer | Apple |
Camera model | iPhone 5 |
Exposure time | 1/15 sec (0.066666666666667) |
F-number | f/2.4 |
ISO speed rating | 400 |
Date and time of data generation | 20:57, 3 June 2013 |
Lens focal length | 4.13 mm |
User comments |
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Latitude | 51° 2′ 34.2″ N |
Longitude | 114° 3′ 37.8″ W |
Altitude | 1,054.547 meters above sea level |
Short title |
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Author |
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Headline | CKUA Microphone |
Orientation | Rotated 90° CCW |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | 6.1.4 |
File change date and time | 20:57, 3 June 2013 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 20:57, 3 June 2013 |
Meaning of each component |
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APEX shutter speed | 3.9069050554871 |
APEX aperture | 2.5260688216893 |
APEX brightness | 0.24957826511587 |
Metering mode | Pattern |
Flash | Flash did not fire, auto mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 33 mm |
Scene capture type | Standard |
GPS time (atomic clock) | 02:57:17.79 |
Reference for direction of image | True direction |
Direction of image | 86.021413276231 |
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