4x Rare NOS DGetter ECC81 12AT7 Matsu/Mullard PreampAudioTubes ~ 1950s Panasonic

Crown jewel early panasonic! highly revered for their incredible sound reproduction, and often compared to mullard sonics. full mutual conductance gm test 101/103/101/102 % + leak/short/gas check + life test (key longetivity indicator).

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