File:IF transformer.JPG
Original file (855 × 1,437 pixels, file size: 362 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionIF transformer.JPG |
English: Intermediate frequency (IF) transformer from a transistor radio receiver, with its rectangular aluminum shield removed. About 4 cm (1.6 inches) long. It consists of a polyethylene tube with two wire windings, one of them center-tapped, which connect to the the solder lugs on the bottom. Across both the windings are connected round ceramic capacitors, visible at bottom. In the center of the tube are two threaded ferrite magnetic cores. The cores can be turned with a hex wrench to adjust, moving them into or out of the windings, to individually adjust the inductance of each winding. Each winding with its capacitor constitutes a tuned circuit, which are inductively coupled, making a resonant transformer. The device acts as a bandpass filter in the radio receiver, filtering out the signals of unwanted stations while allowing the desired station through. |
Date | |
Source | Own work |
Author | Chetvorno |
Licensing
[edit]This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. | |
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse |
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 20:22, 6 July 2013 | 855 × 1,437 (362 KB) | Chetvorno (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on da.wikipedia.org
- Usage on en.wikipedia.org
- Usage on fa.wikipedia.org
- Usage on ru.wiktionary.org
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 | FUJIFILM |
---|---|
Camera model | FinePix E550 |
Exposure time | 1/75 sec (0.013333333333333) |
F-number | f/2.8 |
ISO speed rating | 100 |
Date and time of data generation | 04:02, 6 July 2013 |
Lens focal length | 7.2 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | GIMP 2.6.11 |
File change date and time | 10:00, 6 July 2013 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 04:02, 6 July 2013 |
Meaning of each component |
|
Image compression mode | 2 |
APEX shutter speed | 6.2 |
APEX aperture | 3 |
APEX brightness | 4.66 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 5,292 |
Focal plane Y resolution | 5,292 |
Focal plane resolution unit | 3 |
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 | Auto white balance |
Scene capture type | Standard |
Sharpness | Normal |
Subject distance range | Unknown |