File:FET Armstrong oscillator.svg
Size of this PNG preview of this SVG file: 641 × 546 pixels. Other resolutions: 282 × 240 pixels | 564 × 480 pixels | 902 × 768 pixels | 1,202 × 1,024 pixels | 2,404 × 2,048 pixels.
Original file (SVG file, nominally 641 × 546 pixels, file size: 25 KB)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: Diagram of an Armstrong oscillator circuit using a FET as the active device. The Armstrong oscillator, invented by Edwin Armstrong in 1913, was one of the earliest oscillator circuits. It is an LC oscillator, in which the frequency is determined by a tuned circuit consisting of the inductor L1 and capacitor C. In the Armstrong circuit, a little of the energy from the output of of the transistor, the feedback necessary for oscillation, is fed back into the input (gate) circuit by a small coil L2, called the "tickler coil", inductively coupled to the tank circuit coil L1 |
| Date | |
| Source | Own work |
| Author | Chetvorno |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
 
|
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.
|
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:02, 3 July 2013 | | 641 × 546 (25 KB) | Chetvorno | User created page with UploadWizard |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
Global file usage
The following other wikis use this file:
- Usage on bg.wikipedia.org
- Usage on es.wikipedia.org
- Usage on fa.wikipedia.org
- Usage on fr.wikipedia.org
- Usage on pt.wikipedia.org
