Hi Günther,

    Thank you for the link with the additional information.

    Since the article says that development of these tubes was circa 1937, then development was during the Nazi regime (1933 – 1945) and funded and driven by them.  That is an historical fact.   So was the development of the V2 rocket and jet engine/aircraft (Messerschmitt Me 262). Hans Joachim Pabst von Ohain developed the first practical and functioning jet engine in 1936.  Technology evolved as it often does during wartime. Germany was the world leader in developing numerous technologies during WWII as evidenced by by the US Operation Paperclip program which brought (forcibly in some cases) the cream of Germany’s technology talent (some 1800 scientists plus 3200 family members) to the US in 1946-47. Wernher von Braun and his team are just one example.  The US space program and NASA greatly benefited from the knowledge of these men.  Many of these scientists had been Nazi party members and some had been Nazi party leaders. Those were the times. 

    Better the Allies had their services in the post WWII world than the USSR.

    Thanks again for all your recent contributions.  Very interesting!

    • This reply was modified 3 years, 8 months ago by Michael.