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Radio Record, Volume I, Issue 31, 17 February 1928, Page 12

Neutralisation of the Browning-Drake circuit is a variable factor dependent upon the seif-capacity of the R.I, side of each particular receiver. The set constructed by the writer neutralises with the small capacity condenser described in the article, and sets of similar construction should act similarly, but variations in wiring and deviations from specifications introduce capacity that will in some cases require an ordinary midget condenser for neutralisation, ‘The capacity of the R.F, value used also has a influence upon neutralisation,