THE EXPONENTIAL HORN
Ts the reproduction of the block which illustrated the construction of the exponential horn in last week’s issue, we regret that the figures of one part did not come out clearly. We therefore reproduce herewith the figures so that listeners who are interested may add them to the drawing wh'ch appeared last week. The figures tuat were indistinct were in the top row, and we will reproduce all in that row as follows (from the left): 20in., 17 5-16in., j4 63-Gdin., 12 $1-82in., 11 17-32in., 9 -23-82in., 8 13-82in., 7 17-G4in., 6 19-G4in.. | 4 23-82in., 3 17-82in., 2 41-64in., 1 63-Gtin., 1 31-G4in., 1 7-64in., 53-G4in., 5-$in. ne small scale of the figures in the illustration led to their clouding, but this should enable those interested to ‘adjust matters.
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https://paperspast.natlib.govt.nz/periodicals/RADREC19280706.2.21
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Radio Record, Volume I, Issue 51, 6 July 1928, Page 4
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132THE EXPONENTIAL HORN Radio Record, Volume I, Issue 51, 6 July 1928, Page 4
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