Radio for everybody; being a popular guide to practical radio-phone reception and transmission and to the dot-and-dash reception and transmission of the radio telegraph, for the layman who wants to apply radio for his pleasure and profit without going into the special theories and the intricacies of the art (1922)
Lescarboura, Austin C. (Austin Celestin), 1891- · New York, Scientific American publishing company [etc.] · leaf 207
t eliminates tube noises; it increases selectivity; itincreases signal audibility at each stage at least twentytimes; it makes possible the use of small loops or frameantenna to receive as well as with high antennae; and itgives a 20-watt amateur radio telephone set the trans-mitting range of a… … Another radio-frequency arrangement. VCl—variable con-denser in aerial-ground circuit; LiC—loose-coupler or vario-coupler; VC2—variable condenser across secondary; Am—amplifier tube; Kl, 2, 3, 4—rheostats; PS—primary and sec-ondary of intervalve or amplifying transformer T; GL,—gridleak;…
Radio
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