6L6-GC, 6L6-GB, KT66, 5881, 7027

All 6L6, 7581 & KT66 include our 6 month replacement warranty.
Any of the 5881, 7581 or 6L6-GC listed here have higher ratings than and can be used to replace metal 6L6, 6L6-G, 6L6-GA and 6L6-GB.

Tungsol 6L6-STR: The new production Tung-Sol 6L6GC-STR was built to withstand the heavy rigors of higher plate voltages. These babies will take just about anything you throw at them and sound great doing it. Give these a try if want something that will handle the higher voltages and deliver smooth overdrive and very musical tone.

Sovtek 6L6WXT+: Modeled after the vintage RCA 6L6GC "blackplate," the Sovtek 6L6WXT+ features larger plate dimensions and improved grid structure for increased power handling capabilities.

Tesla/JJ 6L6-GC These handle voltages often used in amps using 7027A. Drop-in replacement for Ampeg, McIntosh and other amps using 7027. Replaces all 6L6-GC & 7581. Also nice sub for British KT66 in Heath W5 and others. In many amps will put out more power..up to 10% or more..than ordinary 6L6! Made in the Slovak republic.

Tesla/JJ 7027A - Not sure if your amp uses those two extra pins? With Tesla 7027A you don't need to worry.
Note we recommend Tesla 6L6-GC for higher powered amps like McIntosh, ARC, Fender,and they are a direct replacement for 7027 in Ampeg "B" and "V" types ("But can I really use 6L6-GC in my Ampeg?" Sure. For more details, read the "Help, My Amp Has 7027's! FAQ") and for 7581A in Harmon Kardon Citation V. Lower powered amps,like 50's vintage Williamson type amps (Heath W3, W4), jukeboxes and most 50's guitar amps, can use any of these.

6L6 Types 6l6typ5875kt

Tung Sol 6L6GC STR Matched QuadTung Sol 6L6GC STR Matched Quad
The Tung-Sol legacy continues with the introduction of the new 6L6GC STR. The ultimate in musical tone and smooth overdrive, the STR delivers the sound that established Tung-Sol as the benchmark of quality. Built to the same “Special Tube Request” specs of leading amplifier manufacturers of the 1960s, the 6L6GC STR is a rugged and reliable power tube for use in the most demanding guitar amplifier circuits.
The new production Tung-Sol 6L6GC-STR was built to withstand the heavy rigors of higher plate voltages. These babies will take just about anything you throw at them and sound great doing it. Give these a try if want something that will handle the higher voltages and deliver smooth overdrive and very musical tone.

tungsol6l6mq$149.95
Sovtek 6L6WXT+ (Russian)  MATCHED QUADSovtek 6L6WXT+ (Russian) MATCHED QUAD
Sovtek is proud to announce the release of their new 6L6WXT+ vacuum tube. Modelled after the vintage RCA 6L6GC "blackplate," the Sovtek 6L6WXT+ features larger plate dimensions and improved grid structure for increased power handling capabilities. The 6L6WXT+ also features mica spacers with metal springs to eliminate tube rattle and microphonics. The Sovtek 6L6WXT+ yields a 20% higher output than the Sovtek 5881WXT and offers superior tone and overall performance to any 6L6 or KT66. The ultimate 6L6, the WXT+ will improve the sound of any 6L6 guitar amplifier.

6L6wxt-SOV-mq$134.95
6L6 WGC MATCHED QUAD -  TUBE AMP DOCTOR - TAD GE STYLE - 6L6WGC-STR6L6 WGC MATCHED QUAD - TUBE AMP DOCTOR - TAD GE STYLE - 6L6WGC-STR
6L6 WGC MATCHED QUAD - TUBE AMP DOCTOR - TAD GE STYLE - 6L6WGC-STR
TAD remakes the all time favorite 6L6 classic of GE. The TAD 6L6WGC-STR has warm lower mids and silky top end; exactly like the classic GE version of the 50s and 60s. The complex midrange and sweet heights are dedicated to excellence in a class of its own. The perfect choice for vintage amps like the Bassman, Twin or Super Reverb. The TAD 6L6WGC-STR is a great choice for classic tone with warm cleans and rich, sweet mids when pushed.
This 6L6 is only 80mm high (without pins) and can also replace 5881 or 6L6WGB tubes.
Black-plate design, gold gird wire, double getter construction, no-noise filaments and 1.2mm thick heavy duty glass envelope.

6L6 WGC MATCHED QUAD - TUBE AMP DOCTOR - TAD GE STYLE - 6L6WGC-STR tad6l6wgcmq$119.95
Tung Sol 6L6 STR Matched PairTung Sol 6L6 STR Matched Pair
The Tung-Sol legacy continues with the introduction of the new 6L6GC STR. The ultimate in musical tone and smooth overdrive, the STR delivers the sound that established Tung-Sol as the benchmark of quality. Built to the same “Special Tube Request” specs of leading amplifier manufacturers of the 1960s, the 6L6GC STR is a rugged and reliable power tube for use in the most demanding guitar amplifier circuits. The new production Tung-Sol 6L6GC-STR was built to withstand the heavy rigors of higher plate voltages. These babies will take just about anything you throw at them and sound great doing it. Give these a try if want something that will handle the higher voltages and deliver smooth overdrive and very musical tone.

tungsol6l6mp$79.95
SOVTEK 6L6-WXT+   (RUSSIA) - MATCHED PAIRSOVTEK 6L6-WXT+ (RUSSIA) - MATCHED PAIR
Sovtek is proud to announce the release of their new 6L6WXT+ vacuum tube. Modelled after the vintage RCA 6L6GC "blackplate," the Sovtek 6L6WXT+ features larger plate dimensions and improved grid structure for increased power handling capabilities. The 6L6WXT+ also features mica spacers with metal springs to eliminate tube rattle and microphonics. The Sovtek 6L6WXT+ yields a 20% higher output than the Sovtek 5881WXT and offers superior tone and overall performance to any 6L6 or KT66. The ultimate 6L6, the WXT+ will improve the sound of any 6L6 guitar amplifier.

6L6wxt-SOV-MP$67.95
Click to enlarge7027 A Tesla/JJ (Slovakia) Matched Pair
7027A by Tesla/JJ, replaces all versions of 7027 or 7027A.

7027ajjMP$59.95
Click to enlarge7027 A Tesla/JJ (Slovakia) Matched Quad
7027A by Tesla/JJ, replaces all versions of 7027 or 7027A.

7027ajjmq$119.95
5881/6L6WGC Sovtek (Russia) Matched Pair5881/6L6WGC Sovtek (Russia) Matched Pair
5881sovmp$39.95
5881/6L6WGC Sovtek (Russia) Matched Quad - SPECIAL ORDER - ALLOW APPROX. 1 WEEK5881/6L6WGC Sovtek (Russia) Matched Quad - SPECIAL ORDER - ALLOW APPROX. 1 WEEK
5881/6L6WGC Sovtek (Russia) Matched Quad - SPECIAL ORDER - ALLOW APPROX. 1 WEEK 5881sovmq$79.95
Click to enlargeKT66 Tesla/JJ (Slovakia) Matched Pair
JJKT66MP$89.90
Click to enlargeKT66 Tesla/JJ (Slovakia) Matched Quad
KT66 BY JJ ELECTRONICS MATCHED QUAD

KT66JJMQ$179.80
SOVTEK 5881/6L6WGC SINGLE TUBE
SOVTEK 5881/6L6WGC SINGLE TUBE

5881sovSINGLE$19.95


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