VALVO EF86 Rare 8Y2 Production Power Tube Extremely Quiet AT1000 TESTS NOS 6267

All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise). AT1000 TESTs as NOS. VALVO EF86 (6267) Power Tube (Single). Here are the desired target numbers for a EF86.

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