The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 103
the efficiency of thermionic amplifiers, detectors,etc. The curve OH is therefore more suitable tlian OAi. It is to be seen, therefore, that it is very desirable to use afilament with as low an electron affinity as possible. This is 80 THERMIONIC VACUUM TUBE obtained in the Wehnelt ^ cathode, which… … Anode VolfsFlG. 27. table II for tungsten filaments with the following, which gives thevalues for a type of Western Electric filament,^ shows the relativethermionic efficiencies of the two types. TABLE IV V /. V Watts iior Cm^. Mils per Cm-. Mils per Watt. 4 11 2.7 5 35 7 6 80 13 7 160 23 8 300…
Telegraph, Wireless
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
