File:1920s TRF radio manufactured by Signal.jpg
![File:1920s TRF radio manufactured by Signal.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/1920s_TRF_radio_manufactured_by_Signal.jpg/800px-1920s_TRF_radio_manufactured_by_Signal.jpg?20090315024010)
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editDescription1920s TRF radio manufactured by Signal.jpg |
English: 1920s TRF radio manufactured by Signal Electric MFG. CO. located in Menominee Mich. Demonstrates early radio construction methods using "breadboard" |
Source | Own work |
Author | Armstrong1113149 |
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I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
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English: Coil with basket winding. German: Korbspulen. Danish: Krydsviklet spole.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:40, 15 March 2009 | ![]() | 3,088 × 2,128 (3.16 MB) | Armstrong1113149 (talk | contribs) | {{Information |Description={{en|1=1920s TRF radio manufactured by Signal Electric MFG. CO. located in Menominee Mich. Demonstrates early radio construction methods using "breadboard" }} |Source=Own work by uploader |Author=[[User:Armstrong1113149|Armstro |
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Camera manufacturer | SONY |
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Camera model | DSC-H7 |
Exposure time | 1/50 sec (0.02) |
F-number | f/3.2 |
ISO speed rating | 400 |
Date and time of data generation | 21:26, 14 March 2009 |
Lens focal length | 10 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
File change date and time | 22:33, 14 March 2009 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 21:26, 14 March 2009 |
Meaning of each component |
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Image compression mode | 3 |
APEX exposure bias | 0 |
Maximum land aperture | 2.875 APEX (f/2.71) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, strobe return light detected, compulsory flash firing |
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 |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |