TC Tubes and Audio Repair

Repair services include tube and solid state gear, turn table set-up, and tube-testing in Twin Cities Metro Area. Authorized Grado and Ortofon dealer.
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6SN7 / 5692 tubes

Displaying products 1 - 9 of 9 results	Show:	Sort:

CBS 6SN7GT - black plates, bottom getter Price: $44.00 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.	CBS 6SN7GT - matched pair Price: $97.00 The early 1950s CBS 6SN7GT tubes in this precisely matched pair have early black plates and bottom getters. The red print on the bases has the CBS logo. Both tubes test new with low noise.	GE 6SN7GTA - gray plates, matched pair Price: $94.00 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.
GE 6SN7GTB - side horseshoe getters, matched pair Price: $97.00 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.	Sylvania 6SN7GT / VT-231 - early black plates, bottom getter Price: $98.00 This Sylvania VT-231 tube is a military spec 6SN7GT tube type from the 1949-1953 "Bad Boy" era of Sylvania 6SN7 production. It has early black plates with 2 rivets and a bottom getter. The white label reads "JAN-CHS-6SN7GT VT-231." Tube tests as new.	Sylvania 6SN7GTA - top getter Price: $37.00 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.
Sylvania 6SN7GTB - matched pair, black plates Price: $94.00 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.	Sylvania 6SN7GTB - tall bottle Price: $49.00 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.	Sylvania 6SN7GTB - top getter Price: $44.00 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.

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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