Battery and Eliminator
‘ A CORRESPONDENT who signs himself "Round the World Three," writes:-"I joined 45 volts dry B battery and eliminator in series. Using dry battery for det, and eliminator for audio, and connecting moving vanes of variable condensers, also coves of audio transformers to the earth. I am having great results, and no hum coming through."
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https://paperspast.natlib.govt.nz/periodicals/RADREC19300516.2.59
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Radio Record, Volume III, Issue 44, 16 May 1930, Page 28
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57Battery and Eliminator Radio Record, Volume III, Issue 44, 16 May 1930, Page 28
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