** How to Make an Interrupter [51] The Wenult interrupter is an instrument much used on large coils and is far more efficient than the usual [Illustration: Details of Interrupter] form of vibrators. [Please select]
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Besides the magnetic vibrators there are several other types, such as the mercury dash-pot and rotary-commutator types, but these will become better known to the amateur as he proceeds in his work and becomes more experienced in coil operation. [Please select]
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