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12AT7 / ECC81 tubes
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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The 1966 military spec GE 6201 / JG-12AT7WA tubes in this precisely matched pair have gray wing plates with copper grid posts, extra support rods, and disc getters. Both tubes test as new and they are matched for current draw (mA) and Gm.
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This 1966 military spec GE 6201 / 12AT7WA has gray wing style plates with copper grid posts, a disc getter, and extra support rods. The green label has the GE logo and reads "JG-12AT7WA," and 6201 is engraved in the glass. Tube tests as new with low noise
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This 1950s RCA 12AT7 preamp tube has black wing style plates and a D getter. The red print on the glass has the RCA logo. Tube tests as new with very 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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This late 1960s military spec Sylvania JAN-12AT7WA tube has black plates with copper grid posts. The large halo getter has dual support posts. The green print on the glass has the Sylvania logo and reads "JAN-12AT7WA." Tube tests as new with low noise.
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The late 1967 military spec Sylvania JAN-12AT7WA tubes in this precisely matched pair have black plates with copper grid posts. The large halo getters have dual support posts. Both tubes test as new and are precisely matched.
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This 1961 military spec Sylvania JHS-12AT7WA has gray plates, triple micas, and D getter with dual support posts. The gold print on the glass reads "JHS-12AT7WA." Tube tests as new with low noise.
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This 1960 Tung-Sol 12AT7 has a halo getter and gray wing style plates with copper grid posts. The white print on the glass has the Tung-Sol logo (may be partial). Tube tests as new.
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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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