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Summary
| Description |
Block diagram of a regenerative radio receiver, invented by Edwin Armstrong in 1912, is a type of radio receiver widely used up until the 1930s.. It consists of a tuned circuit that serves as a bandpass filter to select the desired radio signal out of all the signals picked up by the antenna, and a combined amplifier-detector to increase the power of the signal and extract the audio modulation (sound) signal from from the radio carrier wave. The gain of the amplifier is increased by regeneration (positive feedback, feeding some of the energy from the output of the amplifier back into the tuned circuit at the input. Regeneration can not only increase the gain of the amplifier by a factor of 10,000, it also decreases the bandwidth of the filter by the same factor, increasing the selectivity of the receiver greatly. The resulting audio signal can be amplified in a separate audio amplifier before being applied to the speaker. |
| Date | |
| Source | Own work |
| Author | Chetvorno |
| SVG development |  This diagram was created with Inkscape, or with something else.  This diagram uses translateable embedded text. |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
 
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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.
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File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:24, 9 May 2017 | 1,275 × 721 (13 KB) | Chetvorno | Replaced invalid Inkscape SVG version with "plain SVG" version which passes validation | |
| 04:14, 10 January 2016 | 1,275 × 721 (18 KB) | Chetvorno | Yet more tweaking | ||
| 04:12, 10 January 2016 | 1,275 × 721 (18 KB) | Chetvorno | Tweaked position of text | ||
| 04:04, 10 January 2016 | 1,254 × 720 (18 KB) | Chetvorno | Removed irrelevant color from summing junction | ||
| 04:14, 7 January 2016 | 1,254 × 720 (18 KB) | Chetvorno | User created page with UploadWizard |
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