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6SN7 / 5692 tubes
This early 1950s CBS 6SN7GTB tube has early black plates and a bottom getter. The red print on the bases has the CBS logo. Tube tests as new with low noise.
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The 1955 GE 6SN7GTA tubes in this precisely matched pair have short bottles, gray plates with copper grid posts, and side horseshoe getters. Their black bases have white print with the GE logo. Both tubes test as new and are precisely matched.
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The 1950s GE 6SN7GTB tubes in this matched pair have side horseshoe getters and gray plates with copper grid posts. The print on the glass has the GE logo. Both tubes test as new with balanced sections and low noise.
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The 1950s Sylvania 6SN7GTA tubes in this precisely matched pair have black plates and halo getters with lots of chrome flashing. The black bases have green print with the old Sylvania lightning logo. Both tubes test as new with low noise.
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This 1950s Sylvania 6SN7GTA tube has a medium bottle, black plates, and a halo getter with lots of chrome flashing. The black base has green print with the Sylvania logo. Tube tests as new.
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The 1960s Sylvania 6SN7GTB tubes in this precisely matched pair have black plates and lots of chrome flashing. The yellow print on the bases has the Sylvania lightning logo. Both tubes test as new and are matched for both current draw (mA) and Gm.
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This 1960s Sylvania 6SN7GTB tube has a tall bottle, black plates, and a halo getter with lots of chrome flashing. The yellow print on the base has the Sylvania lightning logo. Tube tests as new with low noise.
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This 1960s Sylvania 6SN7GTB tube has a medium bottle, black plates, and a halo getter with lots of chrome flashing. The black base has yellow or green print with the Sylvania logo. 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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