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6SL7 / 5691 tubes

Displaying products 1 - 16 of 16 results
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.
Cetron JAN 6SL7WGT - ribbed gray plates, brown base
Cetron JAN 6SL7WGT - ribbed gray plates, brown base
Price: $49.00
Cetron JAN 6SL7WGT - ribbed gray plates, brown base
This rare 1972 military spec Cetron 6SL7WGT tube has ribbed gray plates and a halo getter. The brown base has black print with the Cetron logo and reads "JAN-6SL7WGT." Tube tests as new with very low noise.
Chelmer Valve 6SL7GT / ECC35 - black plates
Price: $79.00
Chelmer Valve 6SL7GT / ECC35  - black plates
This early 1950s Chelmer Valve ECC35 tube is a European 6SL7 tube type. It has round black plates and bottom getters. The white print on the glass has the Chelmer Valve logo. Tube tests as new with low noise.
GE 6SL7GT - nickel plates, matched pair
GE 6SL7GT - nickel plates, matched pair
Price: $109.00
GE 6SL7GT - nickel plates, matched pair
The late 1950s GE 6SL7GT tubes in this precisely matched pair have short bottles, nickel plates, and side getters. The red print on the bases has the GE logo. Both tubes test as new with balanced sections and low noise.
GE 6SL7GT - nickel plates, side getter
GE 6SL7GT - nickel plates, side getter
Price: $49.00
GE 6SL7GT - nickel plates, side getter
This 1950s GE 6SL7GT tube has a short bottle, nickel plates, and a side getter. The white or red 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 / 6SL7GT - red base
RCA 5691 / 6SL7GT - red base, mil spec
Price: $109.00
RCA 5691 / 6SL7GT - red base, mil spec
This 1958 RCA 5691 is a premium industrial 6SL7GT tube. It has a short bottle, black plates, extra support rods, and a triple mica. The white print on the red base has the RCA logo and reads "JAN CRC-5691." Tube tests as new and very low noise.
RCA 6SL7GT - black plates
RCA 6SL7GT - black plates
Price: $49.00
RCA 6SL7GT - black plates
This 1958 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 1955 RCA 6SL7GT tube has gray glass and a bottom getter. The black base has silver print with the RCA logo. Tube tests as new.
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.
 Sylvania 5691 / 6SL7GT - RCA label
Sylvania 5691 / 6SL7GT - RCA label
Price: $97.00
Sylvania 5691 / 6SL7GT - RCA label
This Sylvania 5691 is a premium industrial 6SL7GT tube. It has a short bottle, black plates, extra support rods, and a triple mica. The black base has red print with the RCA logo. Tube tests as new with balanced sections and very low noise.
Sylvania 6SL7GT - tall bottle
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 JAN 6SL7WGT - black plates, brown base
Sylvania 6SL7GT / JAN 6SL7WGT - brown base
Price: $54.00
Sylvania 6SL7GT / JAN 6SL7WGT - brown base
This 1956 military spec Sylvania 6SL7WGT tube has a D getter and a brown base. The green or white print on the base has the Sylvania logo and reads "JAN CHS 6SL7WGT." Tube tests as new with balanced sections and low noise.
Sylvania 6SL7GT / VT-229 - black plates, bottom getter
Sylvania 6SL7GT / VT-229 - black plates, bottom getter
Price: $79.00
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: $49.00
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 6SU7GTY / 6SL7GT - black glass, RCA label
Tung-Sol 6SU7GTY / 6SL7GT - black glass, RCA label
Price: $84.00
Tung-Sol 6SU7GTY / 6SL7GT - black glass, RCA label
This rare Tung-Sol 6SU7GTY is a premium quality 6SL7 tube type selected for section balance and low noise. It has round plates and black glass. The white print on the glass has the RCA label. Tube tests as new with balanced sections and very low noise.
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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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