File:Superheterod radio.JPG
Original file (1,500 × 983 pixels, file size: 364 KB, MIME type: image/jpeg)
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Summary
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
Captions
Items portrayed in this file
depicts
11 July 2012
0.03333333333333333333 second
4.3
13 millimetre
100
image/jpeg
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 17:44, 11 July 2012 | 1,500 × 983 (364 KB) | wikimediacommons>Gisling |
File usage
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Metadata
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If the file has been modified from its original state, some details may not fully reflect the modified file.
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 Programme | Normal programme |
Exif version | 2.21 |
Date and time of digitising | 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 |
Colour space | sRGB |
Sensing method | One-chip colour 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 |