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 129
tus consider the simplest kind of detector. Nothing could be less complicated or less expensivethan the crystal detector. It makes use of one of severaldifferent kinds of mineral crystals v^hich possess the de-sirable characteristics. The most popular crystal bodytoday is galena (lead peroxide), a… … SWITCH FOR EITHERETECTOR A crystal detector unit. In this case two detectors are mountedon the sanie base, with a switch for selecting either detector. the contact between the crystal and the wire which doesthe rectifying of the high frequency radio energy, of theorder of 20,000 to 6,000,000…
Radio
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