Useful Tips
Ae (THREADED brass rods should not held directly in the metal jaws of a vice, but should be placed between two pieces of soft wood which can with safety be gripped by the vice. WHEN the axes of two coils are in ‘line the coupling between them is at a maximum,: but when the axes are at right angles it is at a‘ minimum, . O not, allow your set to reproduce voices at the same volume as band music, ete, for the volume of sounds are so disproportionate in the two cases that speech is bound to sound unnatural even if the set is not dis. torting.
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https://paperspast.natlib.govt.nz/periodicals/RADREC19310102.2.49
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Radio Record, Volume IV, Issue 25, 2 January 1931, Page 14
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109Useful Tips Radio Record, Volume IV, Issue 25, 2 January 1931, Page 14
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