This 1956-58 CBS 5692 tube is a military spec 6SN7 tube. It has a short bottle, dual top getters, and shiny black plates. This tube's triple mica and 11 support rods contribute to its long life and low noise. Tube tests as new with very low noise.
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This 1950s military spec CBS 6SN7WGTA has black plates and a side getter. The red print on the base has the CBS logo and reads "JAN-CHY-6SN7WGTA" (partial/missing). Tube tests as new with low noise.
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The early 1960s GE 6SN7GTB tubes in this precisely matched pair have medium bottles, parallel gray plates, and side getters. The GE logo is printed on the glass or bases.
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This 1953 military spec National Union 6SN7WGT has a short bottle, early black plates with 3 rivets and an extra support rod, and a nice chrome dome. The black print on the brown base has the National Union logo. Tube tests as new with very low noise.
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This rare 1954 RCA 6SN7GTA tube has a short bottle, dual side D getters, 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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This 1950s-1960s RCA 6SN7GTB tube has a medium bottle, bottom D getter, and staggered black plates with copper grid posts. The black base has silver or red print with the RCA logo. Tube tests as new with very low noise.
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The 1973 RCA 6SN7GTB tubes in this precisely matched pair have side O getters and black plates with a narrow coin base. The red print on the glass has the RCA logo. Both tubes test as new with balanced sections and low noise.
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The 1957 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. One tube has a slightly tilted bottle (see photo). Both tubes test as new with balanced sections.
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This 1953 military spec RCA 6SN7GT tube has a medium bottle and staggered black plates with copper grid posts (the same construction as the gray glass VT-231). The silver print on the base has the RCA logo and reads "JAN CRC-6SN7-GT." Tube tests as new.
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This 1951 Sylvania 6SN7GT tube has a medium bottle, bottom getter, and early black plates with 2 rivets and copper grid posts. The full black base has green print with the Sylvania lightning logo. Tube tests as new.
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Price: From $22.00 to $64.00
This early 1950s Sylvania 6SN7GT / 6SN7GTA tube has a short bottle, early black plates, and lots of chrome flashing. The full black base has green print with the Sylvania lightning logo. Click "more info" for current availability.
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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 1969 Sylvania 6SN7GTB tubes in this precisely matched pair have black plates and halo getters. The red print on the bases has the DuMont logo and matching date codes (69-02). Both tubes test as new with balanced sections.
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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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This early 1950s military spec Sylvania 6SN7WGT has a short bottle, early black plates, an extra support rod, and a nice chrome dome. The green or gold print on the brown base reads "JAN-CHS-6SN7WGT." Tube tests as new with low noise.
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This new production Tung-Sol 6SN7GTB tube was made in Russia. It has black plates, a top dish getter, and extra support rods. The brown base has white print with the Tung-Sol logo.
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The new production Tung-Sol 6SN7GTB tubes in this precisely matched pair were made in Russia. They have black plates, top dish getter, and extra support rods. The brown bases have white print with the Tung-Sol logo.
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This 1956 Tung-Sol 6SN7WGTA tube has a tall bottle, black plates, and a horseshoe getter with lots of chrome flashing. The white print on the base has the Tung-Sol logo and reads "USN-CTL-6SN7WGTA." Tube tests as new with low noise.
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