NSTEAD of having an open tin of flux upon the work-bench it is a good plan to cut a hole through the lid into which a match-stick or other convenient gadget may be inserted when using the fix. F a loud-speaker is connected to the input of an L.F. amplifier the output of this will reproduce speech from the input end even though fairly long wires are used to connect the input and its "microphone." ~~ on ee en eeaaenaememiniheninaeere ,
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Radio Record, Volume II, Issue 29, 1 February 1929, Page 11
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79Untitled Radio Record, Volume II, Issue 29, 1 February 1929, Page 11
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