Useful Tips
"THE down lead of an aerial should ' come either from one end of the horizontal span, or from its centre. A PIECH of galvanised iron as used for roofing makes an ideal earth plate.
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https://paperspast.natlib.govt.nz/periodicals/RADREC19301128.2.49
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Radio Record, Volume IV, Issue 20, 28 November 1930, Page 13
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36Useful Tips Radio Record, Volume IV, Issue 20, 28 November 1930, Page 13
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