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09331 (U47fet)

09331. U47 fet. U47 fet transformer

Ratio  9:1

The 09331 transformer as used in the U47fet microphone. Hand-wound to the original vintage specifications using custom made bobbins. Custom stamped UI30/25 laminations are meticulously heat treated to match the desired magnetic properties. Fully compatible with vintage microphones as a replacement part.

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