The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 574
ne receiver,such barretters form excellent receivers for radio-telephony,and seem likely to replace the other forms. As used by Poulsenthe crystal is inserted in series with a condenser and telephonereceiver in an inductive circuit operated by an inductance coilconnected to the aerial. WIRELESS… … a*TT£RY. Fig. 494.—Receiving Circuit, De Forest System waves is experienced even in the longest distances as is metwith in wire and especially in cable-wire transmission, so thatthe received words are very clear even though they may befaint. From this it follows that it is only a case of providing…
Telephone
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