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 217
tube repeatersand that line condi-tions were very badover long distances.After three days theconnection was made,and although the in-ventors were warnedby the telephone com-panies that they wouldnot be able to under-stand each other, verysatisfactory speechwas carried on usingthe… … A popular small sized type of loud-speaker employed with the usual two-stage amplifier of the radio receiving:set. A 6-volt storage battery is usedto energize the field coils. RADIO FOR EVERYBODY 19^ design their receivers so that it would be commerciallypractical, for complete it weighed 60…
Radio
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