THE arts of wireless telegraphy and telephony involve the use in the receiving circuit of some device named a detector, which is sensitive to electric oscillations of very high frequency. In the ...

An “Infinite Impedance Detector” might sound a little like something that [Zaphod Beeblebrox] would use to zip around the galaxy. It’s not, of course, but it is an interesting and useful demodulator ...

So rapid have been the advances made in radiotele-graphy and radio telephony that the author has found it necessary to rewrite much of the first edition of this useful book. The invention of the ...

(Nanowerk Spotlight) Heat energy can be converted into electricity with very high efficiency through a temperature-induced electron flow process known as thermionic emission. The basic operating ...