The thermionic vacuum tube and its applications (1920)
Van der Bijl, Hendrik Johannes, 1887- · New York McGraw-Hill Book, Co · leaf 348
calwith that of modulation and is due to the same cause, namely,the curvature of the characteristic. In general, therefore, theequations derived above are applicable also to the problem ofradio detection with the thermionic tube. The only differenceis that in this case we are concerned with a… … Fiu, 194. transforming high frequency into low frequency currents so thatthey can become audible. We can, therefore, use equation (9)to determine the low frequency output of a detector. In thiscase, however, we are not concerned with the first term at all.For example, if a radio frequency e sin j)t…
Telegraph, Wireless
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