Useful Hints
)V HEN drilling ebonite remember that the drill will tend to wander unless. after the exact point has been marked, a centre punch is used to give the drill a start on the panel. ~
HE pentode valve used instead of an ordinary output valve will- often give a pleasing "pbrilliance’ to moyingcoil loudspeaker. reproduction. F you are using a screened set which has copper foil covering the baseboard, be sure to avoid creases and inequalities in its surface, as these are 4 fruitful cause of shorts. O not neglect the adjusting screw 3n your loudspeaker, as the exact distance of the permanent magnet from the diaphragm (controlled by this) is of great importance in getting maximun sensitivity.
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https://paperspast.natlib.govt.nz/periodicals/RADREC19320115.2.32
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Radio Record, Volume V, Issue 27, 15 January 1932, Page 12
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119Useful Hints Radio Record, Volume V, Issue 27, 15 January 1932, Page 12
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