771818) to employ a receiving antenna consisting of vertical wires held in a frame which could be swivelled round into various positions and used to locate the position of the sending station by ascertaining the position in which the frame must be placed to create in it the maximum oscillatory current. [Please select]
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The mould is swivelled round, and the charge pushed into it with a rammer, and it is then swivelled back into position. [Please select]
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