File:Superheterod radio.JPG
Original file (1,500 × 983 pixels, file size: 364 KB, MIME type: image/jpeg)
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Summary
[edit]DescriptionSuperheterod radio.JPG |
English: A cheap transistor radio, a simple type of AM portable radio, with its back open to show parts. It uses a simple five-transistor superheterodyne circuit. Transistor radios are the most popular electronic communications devices in history, with billions manufactured in the 1960s and 1970s.
中文(简体):超外差收音机 |
Date | Taken on 11 July 2012 |
Source | Own work |
Author | Gisling |
Licensing
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Annotations InfoField | This image is annotated: View the annotations at Commons |
Ferrite loopstick antenna
Speaker
Tuning capacitor
Transistor
Transistor
Transistor
Transistor
Transistor
Volume control potentiometer
IF transformer
IF transformer
IF transformer
Audio transformer
Audio transformer
Earphone jack
Battery
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 12:14, 11 July 2012 | 1,500 × 983 (364 KB) | Gisling (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.
Camera manufacturer | Panasonic |
---|---|
Camera model | DMC-LS75 |
Author | Picasa |
Exposure time | 1/30 sec (0.033333333333333) |
F-number | f/4.3 |
ISO speed rating | 100 |
Date and time of data generation | 06:58, 11 July 2012 |
Lens focal length | 13 mm |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Ver.1.0 |
File change date and time | 07:16, 11 July 2012 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 06:58, 11 July 2012 |
Meaning of each component |
|
Image compression mode | 2 |
APEX exposure bias | 0.33 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Fine weather |
Flash | Flash fired, compulsory flash firing |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Manual white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 79 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Unique image ID | 5ef76d576ac4c52414045d662d8f048f |
IIM version | 4 |