The Technical World Magazine, Volume 23Technical World Company, 1915 |
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... Vacuum Tube J. Guy Gilpatric 8 Charles W. Person By the use of a little vacuum tube , Peter Cooper Hewitt , the distinguished scientist and inventor , promises to accomplish marvels in wireless that have hitherto only been dreamed of ...
... Vacuum Tube J. Guy Gilpatric 8 Charles W. Person By the use of a little vacuum tube , Peter Cooper Hewitt , the distinguished scientist and inventor , promises to accomplish marvels in wireless that have hitherto only been dreamed of ...
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... VACUUM TUBE By CHARLES W. PERSON 1. WHERE THE GERMANS BOMBARDED ENGLAND IN THEIR AERIAL RAID OF JANUARY 24 The blue light used by photographers and in factories for. from the Zeppelins , Parsevals , and SchĂ¼tte - Lanzs , but with the ...
... VACUUM TUBE By CHARLES W. PERSON 1. WHERE THE GERMANS BOMBARDED ENGLAND IN THEIR AERIAL RAID OF JANUARY 24 The blue light used by photographers and in factories for. from the Zeppelins , Parsevals , and SchĂ¼tte - Lanzs , but with the ...
Page 14
WIRELESS WONDERS FROM VACUUM TUBE By CHARLES W. PERSON 1. 66 ' M going to invent a better and cheaper light than daylight , ' said Peter Cooper Hewitt of New York several years ago . " Better ... Vacuum Tube J Guy Gilpatric Charles W Person.
WIRELESS WONDERS FROM VACUUM TUBE By CHARLES W. PERSON 1. 66 ' M going to invent a better and cheaper light than daylight , ' said Peter Cooper Hewitt of New York several years ago . " Better ... Vacuum Tube J Guy Gilpatric Charles W Person.
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... tube , a vapor is formed by the mercury which not only conducts electric current but produces a number of the most ex- traordinary phenomena . He discovered , furthermore , that if the tube were con- nected with the wires ... VACUUM TUBE 15.
... tube , a vapor is formed by the mercury which not only conducts electric current but produces a number of the most ex- traordinary phenomena . He discovered , furthermore , that if the tube were con- nected with the wires ... VACUUM TUBE 15.
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THE COOPER HEWITT RECTIFIER LOCOMOTIVE EQUIPMENT The wide range of usefulness of the vacuum tube is seen here . For wireless purposes the tube can catch an immeasurably small quantity of electricity . Here , it is said to be capable of ...
THE COOPER HEWITT RECTIFIER LOCOMOTIVE EQUIPMENT The wide range of usefulness of the vacuum tube is seen here . For wireless purposes the tube can catch an immeasurably small quantity of electricity . Here , it is said to be capable of ...
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