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(!!) (Pair) 6BL7GTA Sylvania branded GE NOS 1968 (37.5/38.8ma and 41/35.6ma)
(!!) (SINGLE) 5687 Tungsol rebranded IBM bronze plates "U" getter used/very good late 1950's (32.5/39ma)
(!!) (SINGLE) 6BL7GT Sylvania branded Tungsol triple mica NOS 1956-1957 (36.2/31.5ma)
(!!) 6BX7GT Sylvania black plates NOS 1960's (56ma/76ma)
(!!) 6BX7GT Sylvania branded GE black plates 1967 (44ma/61ma)
(!!) JTL-5687WA Tungsol bronze plates "O" getter used/good 1958 (30/30.5ma)
