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1939 - how long will they burn... Mr. Bernstein is cautiously examining the one that has burned out

NEON TUBE TEST

CD 1964077 E&MP27.042

Electric Lighting

January 1939

Testing Neon tubes at the Bu of Stands.[sic] in Washington to find how long they will burn. Mr. Bernstein is cautiously examining the one that has burned out. The new type of lighting in tubes called fluorescent lighting may be tested just as these are now being tested. That is for length of life.  


Original Caption by Science Service
National Bureau of Standards



National Museum of American History

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