File:Vacuum tube Seiler Oscillator.png

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Summary

Media data and Non-free use rationale
Description	Original schematic of the Seiler oscillator. C1 and L1 are the LC circuit. C2 couples the LC circuit to the gain device and C3, C4 are a voltage divider to couple the energy in and out of the tuned circuit.
Author or copyright owner	E. O. Seiler
Source (WP:NFCC#4)	Original publication: QST magazine Immediate source: https://www.rsp-italy.it/Electronics/Magazines/QST/_contents/QST%201941_11.pdf
Date of publication	November 1941
Use in article (WP:NFCC#7)	Seiler oscillator
Purpose of use in article (WP:NFCC#8)	The schematic is the important information about Seiler oscillator for the electronics engineer, the text is secondary.
Not replaceable with free media because (WP:NFCC#1)	The original schematic is free of errors.
Minimal use (WP:NFCC#3)	This schematic is used only in this Wikipedia article.
Respect for commercial opportunities (WP:NFCC#2)	Vacuum tube circuits have no commercial value any longer.
Fair useFair use of copyrighted material in the context of Seiler oscillator//en.wikipedia.org/wiki/File:Vacuum_tube_Seiler_Oscillator.pngtrue

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	00:04, 18 February 2024		370 × 269 (51 KB)	DatBot (talk \| contribs)	Reduce size of non-free image (BOT - disable)
	20:31, 16 February 2024	No thumbnail	389 × 283 (23 KB)	AndreAdrian (talk \| contribs)	Uploading a non-free file using File Upload Wizard

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Seiler oscillator

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Horizontal resolution	37.79 dpc
Vertical resolution	37.79 dpc