Technology and Operations  
This forum is for discussing technological & operational matters pertaining to U-boats. 
Re: Comments
Posted by: gmansw7 ()
Date: May 20, 2016 09:45AM

Hollman invented the cavity magnetron in 1935/36, I believe

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Subject Written By Posted
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Re: Comments radar gmansw7 05/20/2016 09:43AM
Re: Comments gmansw7 05/20/2016 09:45AM
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