The SP-310 is designed to fit snugly over all of the SP and MET series audio transformers. The annealed Mu Metal case virtually eliminates all electromagnetic interference and cross-talk that these audio transformers may introduce to the device in which they are being used.
Unit of Measure

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Mil Type Number

N/A Mu Shield Only

Industry Standards

N/A Mil-T-27E


N/A Designed to fit all SP and MET audio transformers.