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12AT7 / ECC81 tubes
The GE 6201 / 12AT7 tubes in this precisely matched pair have gray wing plates with copper grid posts, extra support rods, and halo getters. Both tubes test as new and they are matched for current draw and Gm.
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This 1970s military spec GE 6201 / 12AT7WC has gray wing style plates, a halo getter, and extra support rods. The red label has the RCA logo and 6201 is engraved in the glass. Tube tests as new with very low noise.
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This 1964 Mazda 12AT7 / ECC81 has gray wing style plates and a halo getter (Tk2 series). The white print on the glass has the ADZAM logo and the Suresnes, France factory code is etched in the glass. Tube tests as new with balanced sections and very low no
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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 1960s RCA 12AT7 tube has gray wing style plates and and a halo getter with copper post. The red print on the glass has the RCA logo. Tube tests as new with low noise.
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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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The 1965 Sylvania 12AT7 tubes in this precisely matched pair have black plates with copper grid posts. The large halo getters have dual support posts. The green print on the glass has the Baldwin logo. Both tubes test as new with 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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