HUMMING WITH ELIMINATORS.
Slight humming on the multi-valve set when using a HT battery eliminator can often be overcome by arranging a separate anode potential for the detector valve, i.e., the use l of a small HT battery which will last a very, long time as the drain from the detector is yery small. ®
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Shannon News, 4 May 1928, Page 2
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54HUMMING WITH ELIMINATORS. Shannon News, 4 May 1928, Page 2
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