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6SN7 / 5692 tubes
This rare 1955 RCA 6SN7GTA tube has a short bottle, side D getter, and black plates with copper grid posts. The silver print on the base has the RCA logo. Tube tests as new with balanced sections and very low noise.
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The 1962-63 RCA 6SN7GTB tubes in this precisely matched pair have staggered black plates and bottom D getters. The orange print on the bases has the RCA logo. Both tubes test as new with balanced sections and low noise.
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The 1950s RCA 6SN7GTB tubes in this precisely matched pair have staggered black plates and bottom D getters. The silver print on the bases has the RCA logo. Both tubes test as new with balanced sections and low noise.
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This 1951 Sylvania 6SN7GT tube has ladder-style black plates with copper grid posts and bottom D getters with lots of flashing. The green print on the base has the Sylvania lightning logo. Tube tests as new with low noise.
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The 1951 Sylvania 6SN7GT tubes in this precisely matched pair have ladder-style black plates with copper grid posts and bottom D getters with lots of flashing. The green print on the bases has the Sylvania lighting logo. Both tubes test as new.
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This early 1960s Sylvania 6SN7GTB tube has a tall bottle, black plates, and a halo getter with lots of chrome flashing. The green print on the base has the Sylvania lightning logo. Tube tests as new with balanced sections and low noise.
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The 1950s Sylvania 6SN7GTA tubes in this precisely matched pair have tall bottles, black plates, and top getters with lots of chrome flashing. The green print on the black bases has the Sylvania lightening logo. Both tubes test new with very low noise.
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The 1960s Sylvania 6SN7GTB tubes in this precisely matched pair have black plates and lots of chrome flashing. The green 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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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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