Kaye, G. W. C. (George William Clarkson), 1880-1941 · London, New York [etc.] Longman's Green, and Co. · leaf 100
RECTIFIERS 71 fication (Fig. 43), the anode (of iron wire) is surroundedwith a copper sheath, partly to prevent sputtering on theglass walls, and partly to increase the resistance of the tube C&rhod« … Spira^l ofAluminium Wire Fib. 43.—Section o( a Lodge vaJve-tube for the reverse current (see p. 73). Owing to the use of aphosphorus method of completing the exhaustion, the Lodgevalve is red in colour (see p. 254). The Lodge tube is saidnot to harden with use, but other types of valves shouldbe…
X-rays
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
