Image: Kristallradio (3)
Size of this preview: 800 × 565 pixels. Other resolutions: 320 × 226 pixels | 1,306 × 922 pixels.
Original image (1,306 × 922 pixels, file size: 262 KB, MIME type: image/jpeg)
Description: Cat's whisker detector, an antique radio component, from a Swedish crystal radio receiver. It consists of a fine wire attached to an adjustable arm that touches the surface of a crystal of galena (lead sulfide). It was used in crystal radios from about 1906 to World War 2. It functioned as a crude semiconductor diode, rectifying the AC radio signal to extract the audio (sound) signal from the radio frequency carrier wave.
Title: Kristallradio (3)
Credit: Own work
Author: Holger.Ellgaard
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes
Image usage
The following page links to this image:
All content from Kiddle encyclopedia articles (including the article images and facts) can be freely used under Attribution-ShareAlike license, unless stated otherwise.
.jpg){kind=link}