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12AT7 / ECC81 tubes
The 1964 Mazda 12AT7 / ECC81 tubes in this precisely matched pair have gray wing style plates and halo getters (Tk2 series). The white print on the glass has the ADZAM logo and the Suresnes, France factory code is etched in the glass.
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This Sylvania 12AT7 has black plates with copper grid posts and a large halo getter. The yellow or red print on the glass has the Sylvania logo. Tube tests as new with very low noise.
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TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.
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