!!!Lieben, Robert von b. Vienna, Sept. 5, 1878, d. Vienna, Feb. 20, 1913, physicist and inventor. Nephew of Adolf Lieben. 1905/06 invented the amplifier thermionic valve named after him with magnetic control and in 1910 invented a glowing cathode ray tube with grid control (triode), both were essential in the development of radio and television technology. !Literature OeBL; NDB. %%language [Back to the Austrian Version|AEIOU/Lieben,_Robert_von|class='wikipage austrian'] %% [{FreezeArticle author='AEIOU' template='Lexikon_1995_englisch'}] [{ALLOW view All}][{ALLOW comment All}][{ALLOW edit FreezeAdmin}]