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 37
sual telephone receiver because they are beyond therange of audibility. But remember, the waves are intrains or groups. By making use of a device that canconvert these trains or groups into direct current—currentflowing in only one direction, we secure a series of im-pulses flowing in one… … Ground The essentials of receiving radio signals, comprising tiie an-tenna, inductance coil for tuning, crystal detector, telepliones,and tlie ground. speed of the vibrator or current supply at the transmit-ting end. Thus the diaphragm of the telephone is actu-ated at an audible frequency. In the…
Radio
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