Talk:Cavity magnetron

message: == On the discovery of the magnetron and radar. 
This article omits a number of historical facts, including work on magnetron by Okabe in Japan and Pointe/Gutton in France, the latter devices being sent to Britain in June 1940 and then to USA as part of the Tisza mission. 
 Here is a good source : https://www.researchgate.net/publication/251950186_Maurice_PONTE_and_Henri_GUTTON_pioneers_of_early_French_studies_on_resonant_magnetron_1932-1940  — Preceding unsigned comment added by 2A02:2F05:F20A:4D00:ED6E:5B45:117:A71E (talk) 19:34, 3 September 2023 (UTC)

message: At the end of the paragraph on radar (application), it says that magnetrons could pose a health risk because of their "electromagnetic radiation". Shouldn't it say "x-rays" (which magnetrons inadvertently also produce)? Otherwise (as mentioned in the last sentence) newer radars which replace the magnetron with solid state electronics wouldn't be any safer...?  Greetings, 85.3.83.62 (talk) 20:52, 3 November 2010 (UTC)
thread_title:  Health hazard: electromagnetic waves or x-rays ?? 

message: I'm a retired electronic tech, with Navy radar experience, and a lifelong interest in electronics.
There are a few pertinent Wikimedia images, apparently all for non-English-language Wikipedia sites, such as
Primarily, however, I called up Google images for magnetrons, and found a "lot" of them, many for microwave ovens, or similar, and also magnetron sputtering equipment (another Wikipedia article to be written?). How I do wish that copyright owners would/could release these images!
* There's an excellent image, Fig 13, in the notably-good article (written by a Russian?) at
* Please see also (several photos here): 
That's my idea of a traditional magnetron. The bright square in the middle is the flange for the rectangular waveguide that carries the microwaves to (typically) a radar antenna.
That site, , has a search arrangement; you have to select "Magnetron" in the right search field to get a list of magnetron images, linked by their type numbers. I looked at some, and a good number are without their magnets. The CV series, of which there are many, are British.
* Another: 
The magnetron on the left is an early version of a traditional (X-band) radar magnetron. The horn-shaped structures are the field magnet, most likely alnico. The glass structure at the top has the connections for the cathode heater; they also provide the high-voltage negative pulsed operating power. The magnetron is inside a display case, which explains the bright white dots from the camera's flash.
* Another good one; this is a modern one with integral horseshoe magnets.
* Historic, with magnets:
* Cavity magnetron anode:
* Navy training series, with a few illustrations:
* Present-day magnetrons — Small, but good images:
* Vane-type anode (still essentially like a cavity magnetron), "strapped" to improve performance (less frequency shift during a pulse? I need to do some homework):
* General illustration, and different types of anode cavities:
* Original cavity magnetron anode, apparently:
Regards, (Nikevich; I somehow [mis]managed to log out...) 173.48.76.50 (talk) 11:54, 5 November 2010 (UTC)
replies: text: "The CV series, of which there are many, are British." - the 'CV' stands for 'common valve' and was the standard British designation for thermionic valves (vacuum tubes) at the time. The designation was used as a cover for the magnetron so as to fit in with normal valve designations as might be recovered by the Germans from aircraft wreckage.
" In a conventional vacuum tube....": It is electrons which flow from cathode to anode. Electric CURRENT flows from anode to cathode!  — Preceding unsigned comment added by 86.165.158.111 (talk) 15:17, 7 May 2015 (UTC)
thread_title:  We need a more-typical illustration (or a few) 

message: So in this article under Microwave source, it says the effect is known as synchrotron radiation. However I have not found any source that coincides with this. Because I am not familiar with radiation I cannot add a citation needed, but from what I gather I believe the radiation to be cyclotron radiation and not synchrotron radiation, but again, I am not overly familiar with the subject so I could be wrong. I would like this to be reviewed by someone who can provide a source. Thanks :)  — Preceding unsigned comment added by Accusedbold (talk • contribs) 08:21, 17 March 2015 (UTC)
thread_title:   synchrotron radiation 

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thread_title:  External links modified 

message: ...since this page says that the thing is not to be confused with a megatron. Equinox ◑ 23:24, 12 July 2017 (UTC)
thread_title:  Why does [[megatron]] dab page point here? 

message: Pistol refers to a semi automatic with no cylinder.  — Preceding unsigned comment added by TomHynes75 (talk • contribs) 14:36, 24 September 2018 (UTC)
replies: text: No, it really doesn't.  Pistol could be any type of pistol.  A revolver is just one type.  There are single shots, semi-auto, auto, flint lock, etc etc etc.  Revolver is simply one specific type of pistol  While I do agree that the word 'revolver' is correct here for obvious reasons, I disagree with your statement above since it is not true that the word "pistol" refers to a semi-automatic weapon. That is false.  73.6.96.168 (talk) 08:55, 10 April 2021 (UTC)
thread_title:  Magnetron cut with Colt revolver jigs, not Colt pistol jigs 

message: What shape antenna was used with early magnetrons?  Long is one dimension, but antennas often (but not always) need three dimensions. Gah4 (talk) 16:18, 18 January 2022 (UTC)
thread_title:  ''centimeters long'' 

message: The article mentions linear accelerators as a current use.  All that I know of use klystrons, because they need to get the phase right. Gah4 (talk) 12:28, 30 March 2023 (UTC)
thread_title:  accelerators and phase