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Radio Record, Volume II, Issue 21, 7 December 1928, Page 27

Dp? not lay a panel down on a bench which has not been brushed or freed from bits of metal, or otherwise you may scratch and mar its appear. ance before it is put in the cabinet. [JNDER no circumstances must the ‘small holes in accumulator vent plugs become stopped up, as by allowing the escape of gases when the accumulator is being charged they play an important part in its maintenance. ont