The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 263
plane radio receiver. The aeroplane radio transmitter tuberesembles in its structural features the one shown in Fig. 68but was designed to operate on plate voltages ranging from 275to 350 volts instead of 160 volts, the voltage of the telephonerepeater. The evident rugged construction of these… … THE THERMIONIC AMPLIFIER 241 ported from the top by means of a block of lavite. The lowerpart of the plate forms a collar which fits tightly round the re-entrant tube. The double plates and grids are each stamped inone piece from sheet metal, thus facilitating quantity production.A tube of simple…
Telegraph, Wireless
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