Browse Categories

6SN7 / ECC32 / 5692 / VT-231

Displaying products 1 - 30 of 44 results
Page 1 of 2 Page 12movenext
5692 RCA - red base
5692 RCA - red base
Price: $95.00
5692 RCA - red base
This RCA 5692 is an industrial grade 6SN7 tube--and an audiophile favorite. It has a short bottle, red base with white lettering, and dual top getters. This tube's triple mica and 5 extra support rods contribute to its long life and low noise.
5692 Sylvania made RCA label - premium matched pair
5692 Sylvania made RCA label - premium matched pair
Price: $99.00
5692 Sylvania made RCA label - premium matched pair
The 5692 tubes in this premium matched pair were made by Sylvania and labeled for RCA. They have black plates, medium bottles, and disc getters. Their black bases have red print and matching date codes. Both tubes test as new in box with very low noise.
6SN7EH electro-harmonix - premium matched pair, gold pins
6SN7EH electro-harmonix - premium matched pair, gold pins
Price: $57.00
6SN7EH electro-harmonix - premium matched pair, gold pins
The electro-harmonix 6SN7EH tubes in this premium matched pair are new production tubes made in Russia. They have gray plates, 4 support posts, halo getters, brown bases, and gold pins. Both tubes test as new and are a solid matched pair.
6SN7GT / VT-231 RCA - gray glass, staggered black plates
Price: $25.00
6SN7GT / VT-231 RCA - gray glass, staggered black plates
This RCA VT-231 is a military spec 6SN7GT. It has a medium bottle with gray glass, staggered black plates, and full black base with white print. Tube tests good.
6SN7GT / VT-231 Sylvania
6SN7GT / VT-231 Sylvania - black t-plates
Price: Starting at $60.00
6SN7GT / VT-231 Sylvania - black t-plates
This Sylvania VT-231 is a military spec 6SN7GT tube. It has a medium bottle, bottom getter, and a full black base. The black t-plates have 2 rivets and are closely matched. This tube is from the 1949-1953 "Bad Boy" era of Sylvania 6SN7 production.
6SN7GT / VT-231 Sylvania - premium matched pair
6SN7GT / VT-231 Sylvania - premium matched pair
Price: $164.00
6SN7GT / VT-231 Sylvania - premium matched pair
The Sylvania VT-231 tubes in this rare premium matched pair are military spec 6SN7GT type tubes from the 1949-53 "Bad Boy" era of Sylvania 6SN7 production. They have medium bottles, bottom getters, and black t-plates with 2 rivets. Both tubes test as new.
6SN7GT CBS Hytron - premium matched pair, black t-plates
6SN7GT CBS Hytron - premium matched pair, black t-plates
Price: $74.00
6SN7GT CBS Hytron -  premium matched pair, black t-plates
The mid 1950s CBS Hytron 6SN7GT tubes in this premium matched pair have medium bottles with bottom D getters, black t-plates, and full black bases with white print. Both tubes test as new and are matched to within 5% for transconductance (Gm).
6SN7GT National Union - black glass, staggered black plates
6SN7GT National Union - black glass, staggered black plates
Price: $45.00
6SN7GT National Union - black glass, staggered black plates
This National Union 6SN7GT was manufactured in 1950. It has a medium bottle with black glass, staggered black plates and a full black base with white print. Tube tests good with matched plates and very low noise.
6SN7GT RCA - gray glass, staggered black plates
6SN7GT RCA - gray glass, staggered black plates
Price: Starting at $15.00
6SN7GT RCA - gray glass, staggered black plates
This RCA 6SN7GT has a medium bottle with gray glass, staggered black plates, and a full black base with silver print. Choose from tubes that test as new, good, or bargain.
6SN7GT RCA - gray glass, staggered black plates, Victor logo
6SN7GT RCA - gray glass, staggered black plates, Victor logo
Price: $39.00
6SN7GT RCA - gray glass, staggered black plates, Victor logo
This RCA 6SN7GT was manufactured in the late 1940s and has the old RCA Victor logo on the base. It has a medium bottle with gray glass, staggered black plates, and full black base with white print. Tube tests good.
6SN7GT RCA - staggered black plates, matched pair
6SN7GT RCA - premium matched pair, staggered black plates
Price: $74.00
6SN7GT RCA - premium matched pair, staggered black plates
The RCA 6SN7GT tubes in this premium matched pair have medium bottles with clear glass, staggered black plates, and full black bases with silver print. Both tubes test as new and are closely matched.
6SN7GT RCA - staggered black plates, bottom getter
6SN7GT RCA - staggered black plates, bottom getter
Price: Starting at $19.00
6SN7GT RCA - staggered black plates, bottom getter
This RCA 6SN7GT tube has a medium bottle with clear glass, staggered black plates, and a full black base with silver print. Choose from tubes that test as new, good, or bargains.
6SN7GT RCA made - black glass, staggered black plates
6SN7GT RCA made - black glass, staggered black plates
Price: $45.00
6SN7GT RCA made - black glass, staggered black plates
This RCA made 6SN7GT was manufactured in 1952 and labeled for Silvertone. It has a medium bottle, full black base, black glass, and staggered black plates. Tube tests good and is low noise.
6SN7GT RCA made - staggered black plates, bottom getter
6SN7GT RCA made - staggered black plates, bottom getter
Price: Starting at $18.00
6SN7GT RCA made - staggered black plates, bottom getter
This 6SN7GT tube was manufactured by RCA in the early 1940s. It has a medium bottle, staggered black plates, and full black base with silver label. Choose from tubes that test as new, good, or bargain.
6SN7GT Sylvania - round black plates, bottom getter
6SN7GT Sylvania - black t-plates, bottom getter
Price: Starting at $45.00
6SN7GT Sylvania - black t-plates, bottom getter
This Sylvania 6SN7GT dual triode preamp tube has a medium bottle, bottom getter, and full black base with green print. The old style black plates have 2 rivets. Choose from tubes that test as premium new (matched plates) or new.
6SN7GT Sylvania - black t-plates, bottom getter, matched pair
6SN7GT Sylvania - black t-plates, bottom getter, matched pair
Price: $120.00
6SN7GT Sylvania - black t-plates, bottom getter, matched pair
These Sylvania 6SN7GT dual triode preamp tubes have medium bottles, bottom getters, and full black bases. The old style black plates have 2 rivets. Both tubes test as new and are sold as a matched pair.
6SN7GT Tung-Sol - ear micas, round gray plates, tall bottle
6SN7GT Tung-Sol - "mouse ear" micas, gray plates
Price: Starting at $21.00
6SN7GT Tung-Sol - "mouse ear" micas, gray plates
This Tung-Sol 6SN7GT dual triode preamp tube has distinctive "mouse ear" micas. It also has a gray plates and bottom getter. Choose from tubes that test as new, good, or bargain.
6SN7GT Tung-Sol - premium matched pair, gray t-plates
6SN7GT Tung-Sol - premium matched pair, gray t-plates
Price: $97.00
6SN7GT Tung-Sol - premium matched pair, gray t-plates
The mid-1950s Tung-Sol 6SN7GT tubes in this premium matched pair have gray t-plates and bottom getters. Both tubes test as new with very low noise. They are matched to within 2% for transconductance (Gm) and within 9% for emissions (mA).
6SN7GT Tung-Sol - round black plates, black glass
6SN7GT Tung-Sol - round black plates, black glass
Price: Starting at $174.00
6SN7GT Tung-Sol - round black plates, black glass
This Tung-Sol 6SN7GT tube is one of the most renowned 6SN7s ever made. It was manufactured in 1940s and has a medium bottle with black glass, round black plates, and a full black base.
6SN7GT Tung-Sol - staggered black plates
6SN7GT Tung-Sol - staggered black plates
Price: $40.00
6SN7GT Tung-Sol - staggered black plates
This Tung-Sol 6SN7GT was manufactured in 1960. It has a medium bottle, staggered black plates, bottom getter, and a full black base.
6SN7GTA AWV - made in Australia
6SN7GTA AWV - made in Australia
Price: $34.00
6SN7GTA AWV - made in Australia
These rare AWV (Amalgamated Wireless Valve Co.) 6SN7GTA tubes were made in Australia. They have medium bottles, black plates, and a bottom getter. They test as new and come in their original boxes.
6SN7GTA GE side getter clear top
6SN7GTA GE - gray plates, side getter, clear top
Price: Starting at $22.00
6SN7GTA GE - gray plates, side getter, clear top
This GE 6SN7GTA dual triode preamplifier tube has a medium bottle and side getter. Choose from tubes that test as new or good.
6SN7GTA GE - black plates, side getter, premium matched pair
6SN7GTA GE - premium matched pair, black plates, side getter
Price: $76.00
6SN7GTA GE - premium matched pair, black plates, side getter
The GE 6SN7GTA tubes in this premium matched pair have short bottles, black plates, copper grid posts, and side getters. Their black bases have matching 1951 date codes. They are slightly microphonic when tapped, but test as new and are precisely matched.
6SN7GTA RCA - black plates dual side getters!
6SN7GTA RCA - black plates, dual side getters!
Price: $40.00
6SN7GTA RCA - black plates, dual side getters!
This 6SN7GTA by RCA has a medium bottle, black plates, and the rare dual side getters.
6SN7GTA Sylvania - black plates, top getter
6SN7GTA Sylvania - black plates, top getter
Price: $45.00
6SN7GTA Sylvania - black plates, top getter
This 1950s Sylvania 6SN7GTA dual triode preamplifier tube has a medium bottle with clear glass, triangular black plates, and a top getter with lots of chrome flashing. The full black base has green print. Tube tests as premium new.
6SN7GTA Sylvania - premium matched pair
6SN7GTA Sylvania - premium matched pair, green label
Price: $129.00
6SN7GTA Sylvania - premium matched pair, green label
The 1940s Sylvania 6SN7GTA tubes in this premium matched pair have short bottles, triangular black plates, and top getters with lots of chrome flashing. The full black bases have green print. Tubes test new and are very precisely matched.
6SN7GTA Sylvania made - black triangle plates
6SN7GTA Sylvania made - black triangle plates
Price: $30.00
6SN7GTA Sylvania made - black triangle plates
This 6SN7GTA tube was made by Sylvania and labeled for other companies. It has a short bottle, full base, black triangle plates, and heavy chrome flashing. Among the earliest chrome dome types! Tube tests as new.
6SN7GTA Sylvania made - premium matched pair, tall bottle
6SN7GTA Sylvania made - premium matched pair, tall bottle
Price: $129.00
6SN7GTA Sylvania made - premium matched pair, tall bottle
The 1955 6SN7GTA tubes in this premium matched pair were made by Sylvania and labeled for Philco. They have tall bottles, triangular black plates, and top getters with lots of chrome flashing. Tubes test new and are very precisely matched.
6SN7GTA Sylvania - chrome domes
6SN7GTA Sylvania made - top getter, black t-plates with 3 rivets
Price: $35.00
6SN7GTA Sylvania made - top getter, black t-plates with 3 rivets
This 6SN7GTA was manufactued by Sylvania and labeled for other companies. It has a short bottle, top getter with lots of chrome flashing, and full black base with yellow print. The black t-plates have 3 rivets. Tube tests as new.
6SN7GTB Raytheon black plates
6SN7GTB Raytheon - black plate
Price: Starting at $18.00
6SN7GTB Raytheon - black plate
This 6SN7GTB by Raytheon has a medium bottle, top halo getter, and black plates. The black octal base has yellow printing.
Page 1 of 2 Page 12movenext
Search
Shopping Cart
Your cart is empty.
TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar players, DIY tube audio enthusiasts, and audiophiles.
 
We also offer high quality and hard to find parts for DIY tube amplifier projects.
 
Our website features secure payment options and fast, convenient shipping around the world.