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Sylvania 6SN7GT - early ladder plates
This 1950 Sylvania 6SN7GT tube is from the "Bad Boy" era of Sylvania 6SN7 production. The early black plates have 3 rivets with copper grid posts. The green print on the base has the early lightning logo. Tube tests as new with balanced sections.
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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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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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