CHAPTER III

RECEIVING APPARATUS 37

Methods of Receiving--Author's Photographic Receiver--Decohering Apparatus--Description of Einthoven Galvanometer--Use of Galvanometer in Receiving--Belin's Application of Blondel's Oscillograph--Description of Charbonelle's Receiver--Use of Telephone Relay--Description of Telephone Relay--Telephotographic Receiver--Polarisation Receiver--Kathode-Ray Receiver--Electrolytic Receiver--Atmospherics in Long-Distance working.

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