Browse Categories

6SL7 / 5691 tubes

Displaying products 1 - 22 of 22 results
RCA 5691 - red base, matched pair
RCA 5691 - red base, matched pair
Price: $189.00
RCA 5691 - red base, matched pair
The 1961 RCA 5691 tubes in this precisely matched pair are a premium 6SL7 tube type. They have short bottles, distinctive red bases, triple micas and 11 support rods. The are labeled for GE. Both tubes test as new with balanced sections.
Arcturus 6SL7GT - black plates
Arcturus 6SL7GT - black plates
Price: $44.00
Arcturus 6SL7GT - black plates
This 1950s Arcturus 6SL7GT tube has black plates and a bottom getter. The red print on the base has the Arcturus logo. Tube tests as new with balanced sections and low noise.
CBS 6SL7GT - black glass
CBS 6SL7GT - black glass
Price: $34.00
CBS 6SL7GT - black glass
This 1953 CBS 6SL7GT tube has bottom getter and black glass. The white print on the base has the CBS Hytron logo. Tube tests as new with balanced sections and low noise.
CBS 6SL7GT - gray plates, tall bottle
CBS 6SL7GT - gray plates, tall bottle
Price: $27.00
CBS 6SL7GT - gray plates, tall bottle
This CBS 6SL7GT tube has a tall bottle, gray plates, and a top getter with lots of chrome flashing. The red print on the base has the CBS logo. Tube tests as new with balanced sections. Slightly microphonic when tapped directly.
GE 6SL7GT - black glass
GE 6SL7GT - black glass
Price: $49.00
GE 6SL7GT - black glass
This 1953 GE 6SL7GT tube has a bottom getter and black glass. The white print on the base has the GE logo. Tube tests as new.
GE 6SL7GT - nickel plates, side getter
GE 6SL7GT - nickel plates, side getter
Price: $32.00
GE 6SL7GT - nickel plates, side getter
This 1950s GE 6SL7GT tube has a short bottle, nickel plates, and a side getter. The black base has white print with the GE logo. Tube tests as new with balanced sections.
Raytheon 6SL7GT - black plates
Raytheon 6SL7GT - black plates
Price: $42.00
Raytheon 6SL7GT - black plates
This 1950s Raytheon 6SL7GT tube has black plates and a bottom getter. The yellow print on the base has the Raytheon Uniline logo. Tube tests as new with balanced sections and low noise.
RCA 5691 - red base, GE label
RCA 5691 / 6SL7GT - red base, GE label
Price: $84.00
RCA 5691 / 6SL7GT - red base, GE label
This 1959 RCA 5691 is a premium industrial 6SL7GT tube. It has a short bottle, black plates, and a triple mica. The red base has the GE logo in white print. Tube tests as new with very low noise.
CA 5691 / 6SL7GT - red base
RCA 5691 / 6SL7GT - red base, Raytheon label
Price: $84.00
RCA 5691 / 6SL7GT - red base, Raytheon label
This 1950s RCA 5691 is a premium industrial 6SL7GT tube. It has a short bottle, black plates, and a triple mica. The red base has yellow print with the Raytheon logo. Tube tests as new with very low noise.
RCA 6SL7GT - black plates
RCA 6SL7GT - black plates
Price: $49.00
RCA 6SL7GT - black plates
This 1961 RCA 6SL7GT tube has black plates and a bottom D getter. The silver print on the base has the RCA logo. Tube tests as new with balanced sections and low noise.
RCA 6SL7GT - gray glass, bottom getter
RCA 6SL7GT - gray glass, bottom getter
Price: $64.00
RCA 6SL7GT - gray glass, bottom getter
This 1954 RCA 6SL7GT tube has gray glass and a bottom getter. The black base has silver print with the RCA logo. Tube tests as new with balanced sections and low noise.
RCA 6SL7GT - matched pair
RCA 6SL7GT - matched pair
Price: $109.00
RCA 6SL7GT - matched pair
The 1965 RCA 6SL7GT tubes in this precisely matched pair have black plates and bottom getters. The silver print on their bases has the RCA logo and matching date codes ("AW"). Both tubes test as new. They are matched for both current draw (mA) and Gm.
RCA 6SL7GT - short bottle
RCA 6SL7GT - short bottle
Price: $39.00
RCA 6SL7GT - short bottle
This unusual RCA 6SL7GT tube has a short bottle with gray plates plates and a bottom getter. The red print on the glass has the RCA logo. It is labeled "Made in W. Germany" but this tube was probably made in Japan. Tube tests as new with low noise.
RCA 6SL7GT - short bottles, matched pair
RCA 6SL7GT - short bottles, matched pair
Price: $89.00
RCA 6SL7GT - short bottles, matched pair
The unusual RCA 6SL7GT tubes in this precisely matched pair have short bottles, gray plates, and bottom getters. The red print on the glass has the RCA logo. They are labeled "Made in W. Germany" but they were probably made in Japan.
Sylvania 6SL7GT - bottom getter
Sylvania 6SL7GT - bottom getter
Price: $54.00
Sylvania 6SL7GT - bottom getter
This 1951 Sylvania 6SL7GT tube has the same construction as the military spec VT-229, with round gray plates and a bottom getter. The black base has the Sylvania lightning logo. Tube tests as new with low noise.
Sylvania 6SL7GT - chrome top
Sylvania 6SL7GT - tall bottle
Price: $49.00
Sylvania 6SL7GT - tall bottle
This 1960s Sylvania 6SL7GT tube has a tall bottle, round black plates, and a top halo getter with lots of chrome flashing. The black base has yellow print with the Sylvania lightning logo. Tube tests as new with balanced sections.
Sylvania 6SL7GT - top getter
Sylvania 6SL7GT - top getter
Price: $39.00
Sylvania 6SL7GT - top getter
This 1960s Sylvania 6SL7GT tube has round black plates and a top getter. The yellow print on the base has the Sylvania lighting logo. Tube tests as new.
Sylvania 6SL7GT - top getter, matched pair
Sylvania 6SL7GT - top getter, matched pair
Price: $82.00
Sylvania 6SL7GT - top getter, matched pair
The 1960s Sylvania 6SL7GT tubes in this precisely matched pair have round black plates and halo getters. The yellow print on their black bases has the Sylvania lightning logo. Both tubes test as new with balanced sections.
Sylvania 6SL7GT / VT-229 - black plates, bottom getter
Sylvania 6SL7GT / VT-229 - black plates, bottom getter
Price: $64.00
Sylvania 6SL7GT / VT-229 - black plates, bottom getter
This 1950s military spec Sylvania 6SL7GT / VT-229 tube has round black plates and a bottom getter. The black base has white print that reads "JAN-CHS-6SL7GT VT-229." Tube tests as new with balanced sections and low noise.
Tung-Sol 6SL7GT - ribbed gray plates
Tung-Sol 6SL7GT - ribbed gray plates, tall bottle
Price: $39.00
Tung-Sol 6SL7GT - ribbed gray plates, tall bottle
This 1960s Tung-Sol 6SL7GT tube has a tall bottle, ribbed gray plates, and a halo getter. The black base has white print with the Tung-Sol logo. Tube tests as new with balanced sections and low noise.
Tung-Sol 6SL7WGT - black plates, triple mica
Tung-Sol 6SL7WGT - black plates, triple mica
Price: $59.00
Tung-Sol 6SL7WGT - black plates, triple mica
This rare 1963 Tung-Sol 6SL7GT tube has black plates, a D getter, and a triple mica. The brown base has black print with the Tung-Sol logo. Tube tests as new with low noise.
Tung-Sol JAN 6SL7WGT - ribbed gray plates, brown base
Tung-Sol JAN 6SL7WGT - ribbed gray plates, brown base
Price: $49.00
Tung-Sol JAN 6SL7WGT - ribbed gray plates, brown base
This 1966 military spec Tung-Sol 6SL7WGT tube has ribbed gray plates and a halo getter. The brown base has red print with the Tung-Sol logo and reads "JAN-CTL-6SL7WGT." Tube tests as new with low noise.
Search
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.

Shopping Cart
Your cart is empty.