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Bv.13 (U87, KM56)

Bv.13, Bv13, U87 transformer

Ratio  9.23:1

The Bv.13 transformer as used in the U87 microphone. Hand-wound to the original vintage specifications using custom made bobbins. Custom stamped UI laminations are meticulously heat treated to match the desired magnetic properties. Fully compatible with vintage microphones as a replacement part.

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