Fig. 4 (lower).—Curve showing effective resistance of a typical loudspeaker at various frequencies.
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Radio Record, Volume III, Issue 33, 28 February 1930, Page 35
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13Fig. 4 (lower).—Curve showing effective resistance of a typical loudspeaker at various frequencies. Radio Record, Volume III, Issue 33, 28 February 1930, Page 35
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