Mullard Holland ECC82 12AU7 Valve Long Plates Foil Strip D Getter? M K6P (V21)
M K6P Code in the Base. Rare ECC82 12AU7 CV491 Valve Tube.
Long Plates & Foil Strip D Getter. 100% Book Spec = Ia 10.5 / Gm 2.2.
Nos Vintage Mullard
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