Power Output Tubes Currently Available

(If you don't see the power tubes you need, please email us! We have over 30,000 NOS audio tubes in stock!)

We test all tubes for leakage, gas, shorts, and transconductance on our mil-spec calibrated computerized Hickok 118B, and then use the Amplitrex AT-1000 and our Maxi-Matcher to further match power output tubes for current draw usually within 1-3 mA. This is the best process for giving you the highest quality tubes and making your guitar amp or hi-fi sound its very best!

7027A 6550A 5881 6L6GC 6BQ5/EL84/E84L 6V6 KT66 KT88 EL34/6CA7

STC/ITT 11E2 CV276 Tube- NOS in original ITT or Military boxes.  Just $34.99 per tube, or buy 100 pcs for just $9.99 per tube. Excellent DIY audio tube!

100 pieces CV276 11E2 tube Just $999.99

Eimac 4-65A 8165 NOS- Branded SIEMENS in original Eimac boxes. Just $24.99 each! While supplies last! Enter qty 2 for pair etc!!

NOS RCA 801A-

an uprated version of the 10 Type tube, 801 has 7.5V filament at 1.25A, with a mu of 8, 20 Watts.

NOS pairs in original boxes just $199.99 per pair!

Tung Sol 5998- Matched pairs just $249.99!  Lightly used but passed our rigorous test at NOS levels!  We got over 200 pieces so we can provide excellent matching!  Branded Tung Sol and Chatham!  Order now while these last! Enter Qty 1 for matched pair, Qty 2 for matched quad.

NOS Sylvania 8417- Branded as RCA, these tubes were actually made by Sylvania.  Very hard to find.  NOS triple tested as always.  Matched pairs are $199.99.  Enter qty 1 for matched pair, enter qty 2 for matched quad.

GE NOS 7027A- Great for those old ampeg guitar amps!  These are NOS in original boxes! Get them while you can! SOLD OUT!

NOS NIB RCA 7027A Pair- Getting even more scarce, these RCA's 7027A are an excellent choice for those needing the 7027A for their power output section.  All tubes at Tejas Tubes are thoroughly tested on our "unforgiving" Hickok 118B cardmatic!  SOLD OUT!

NOS NIB Sylvania 7027A- $140 per pair! IN Stock!

GE NOS 6550A- These amazing tubes are getting harder and harder to find!  These are all NOS and will be supplied in either original boxes or white boxes! Get them while they last! Just $324.99 per Platinum matched pair! (each tube matched on our Amplitrex AT-1000 and Maxi-matcher within 1-3 mA of each other)

GE NOS 6550A Platinum matched quads (all tubes within 1-3 mA) available for just $649.99!!

GE NOS 6550A Platinum matched sextet for Ampeg SVT amps (all tubes within 1-3 mA) available for just $974.99!!

NOS Sylvania 6550 Metal Base $399.99 per pair!

Over 60 pcs In Stock! Extremely tight matching! Extremely rare!  Best sounding next to Tung Sol,,,extremely open, lively, and dynamic! Amazing highs and very tight bass response!  Order now.  All pieces matched within 1-3 mA!

NOS Tung Sol 6550 Matched Pair- Made by Tung Sol, these RCA branded "coke bottle" shape 6550 are the creme de la creme of 6550's.  Matched very tightly, these are extremely hard to come by! A few singles availble with broken guide pins. Lightly used $275 per tube. Pairs/Quads available.

NOS GOLD LION MO VALVE GEC KT88 - These, like the tubes below are the pinnacle of power output fidelity! NOS NIB and precision matched! Perfect for the most demanding audiophile. Sold Out!

Sino/Chinese Shuguang KT88 - Billington Gold Triple tested and matched.  These are excellent sounding KT-88 from China-Shuguang at an EXCELLENT price!  Just $69.99 per pair, provided in original boxes. Matched to perfection within 1-3mA

NOS GEC KT88 - These tubes need no introduction. NOS NIB matched within 2 ma of each other! Perfect for that guitar amp or Hi-fi system which demands the best! Sold Out!

Tung Sol NOS NIB 5881!  Amazing Tung Sol 5881 tubes.  These are almost impossible to find in this condition in original boxes 1961 date codes pairs within 3 mA of each other!  Hurry while you can still find them! Just $199.99 per matched pair! Perfect for those old fender tweeds! (also look below for canadian made GE 5881 branded as CEI at a special low price)!

Tung Sol ANOS 5881! Same as above but lightly used! Matched to perfection usually within 3 mA just like all of our other power tube sets. Special Price of just $129.99

GE Canada NOS NIB 5881- Branded as CEI (Calvert Electronics) but made by GE side getters, punchy full tone! These NOS matched pairs and quads of 5881 are just right for that old tweed guitar amp or Hifi! Vintage TONE at a great price!Just $149.99 per matched pair! Just $299.99 per matched quad (enter qty of 2 when ordering)

NOS GEC Smoked Glass KT66/CV1075 - Earlier smoked glass, inverted cup getter version which are getting harder to find! NOS in original military cartons.

All pairs are OUT OF STOCK! We do have some KT66 singles available,,,please email us for details.

NOS NIB RCA Black Plate 6L6GC Matched Pair - If you have a guitar amp which takes 6L6's, then you owe to yourself to try a pair of the "Holy Grail" of 6L6GC! Supplied in original boxes. Very Low Stock!!! Just $400.00 per pair.

ANOS RCA Black Plate 6L6GC Matched Pair- These were placed into equipment, so we do consider them used, but all test at NOS levels or higher. Truly the best of the best when it comes to warmth and dynamic range! Special price of just $279.99 per matched pair!

Low Stock Warning!!!

GE NOS 6L6GC Matched Pair: Brand New! Burned in for 48 hours at full plate voltages, these are the creme of the crop!  We aquired over 200 pcs in bulk trays of 50 pcs, so we have PLENTY to match from so you don't get any tighter matching than this,,,all pairs between 1-2 mA apart!!  Special price just $199.99 per pair (supplied in either white boxes or original commercial boxes.)

Brand New- Sylvania/Philips ECG STR-387 NOS 6L6GC matched pair:- perfect for Dumble, Two Rock, Fuchs, Bludotone, Glaswerks, Mesa Boogie and other guitar amps!

Matched within 1-3 mA  $199 per pair!

Brand New- Sylvania ECG STR-415 NOS 6L6GC matched pair:- perfect for Dumble, Two Rock, Fuchs, Bludotone, Glaswerks, Mesa Boogie and other guitar amps!

Matched within 1-3 mA  $199 per pair!

Brand New- Mesa Boogie branded Sylvania STR-415 NOS 6L6GC matched pair:- perfect for restoring that old Mesa Boogie as well as other guitar amps!

Matched within 1-3 mA  $199 per pair!

Sylvania JAN 6BQ5/EL84 Grey plate Matched Pair/Quads- These babies pack a punch and are mil-spec version of some of the best guitar amp tubes you can find! These were all lightly used but tested at NOS levels or higher, and then further matched on our Maxi matcher to within 1-5 milliamps of current draw for best performance in your hifi or guitar amplifier. Just $99.99 per pair! (Please note: silk screening and boxes may vary but all are either Sylvania grey or black plate).

Sylvania JAN 6BQ5/EL84 Grey plate Platinum Matched Quad - Same as above, but 4 pieces matched within 1-5 mA of each other! Just $199.99!

NOS NIB RFT EL84 6BQ5- We recently aquired almost 100 pcs of these German made RFT EL84 (branded as Zaerix or Siemens etc), so we have super tight matching and SUPER LOW pricing on both pairs and quads of this awesome sounding tube! Blows away any current production junk! Perfect for the Vox AC30! Just $129.99 per quad! Sold Out!

NOS NIB Philips Mullard (Yugo made) 1960's EL84- We recently aquired 100 pcs of these old production Yugo made KM4 Philips/ Mullard version of the EL84 branded as EI made in the 1960's with double getter supports and extra thick copper support posts. We have super tight matching on quads of this awesome sounding tube! Blows away any current production junk and should definately NOT be confused with the recent EI production of today! They will never be made to this spec again! Notice the thick copper support post and the identical structure to the 1960's Mullard Yugo made tube shown next to the EI! Perfect for Manley amps, and guitar amps! $129.99 per pair (enter qty 2 for matched quad)

NOS NIB Tungsram El84 6BQ5- These mil spec tubes were actually made for Siemens and are one of the best sounding EL84 tubes we have heard from eastern Europe. Extra flashing is placed at the ventilation holes on Tungsram El84 and then these were screened and tested by Siemens for a military contract.  We aquired over 100 pcs of these so we can provide super tight matching! Here is a review by Terry Buddingh, Guitar Player Magazine writer and tube expert:

"The Tungsram EL84 gave a more aggressive hard rock sound and somewhat more growling, mean presentation than the Amperexes. Harmonically rich with a nice HARD ROCK sound."   Just $149.99 per pair (enter qty 2 for match quad)

NOS Siemens E84L- 1960's rebranded for french military by RTC-NOS NIB Siemens E84L

"Joshua,got the e84l's today and put a set in my Dr. Z Maz 18 nr. They sounded great. Great tubes from a great guy. Thanks, John G. Wheat"

Siemens E84L NOS (RTC Branded) Just $65.00 each ($129.99 per pair)

Recommended for Komet K19 amp,Morgan amps, Vox amps, Trainwreck, Dr. Z Z Wreck and other Dr. Z amps etc! 13.5 watts max plate dissipation with 450V max plate volts

Perfect for any amp which takes an EL84 tube!

Siemens E84L Identical Current Pairs and Quads!

We got in 400 pcs of these amazing E84L tubes made by Siemens so we can offer unprecedented matching on quads! 

Yes that right, identical current pairs for just $10 more per pair!

Identical Current Pairs and Quads (all tubes being identical mA draw +- 0.5 mA)

Perfect for HIFI applications!

Identical Current Siemens E84L pairs just $139.99

( Identical current quad also available!)

NOS NIB Russian Made EL84- An excellent chioce if you are on a budget and these BLOW away any current production EL84 as they were made at the older russian factory by the USSR government plant for the russian military (notice the copper support posts!). Ours are actually branded United or National. $34.99 per pair

Russian made 6V6GT ON SALE!- Made in USSR by Sovtek etc dark glass, lightly used pairs just $19.99!!! Matched within 3-5mA!! Get em while they last!!!

NOS Brimar CV511FE 6V6GTY Pair- Ranked only 2nd to the infamous RCA 6v6, the British made 6v6gty are an amazing tube especially for Fender Deluxe Reverb amplifiers!  Pick up a pair and let them rock your world! Now just $139.99 per pair! Only one pair remaining!!!

NOS GE 6V6GT Pair- Another powerful tube for those old guitar amps with incredible warmth and punch! Hard to find coin and regular base available. OEM and JAN military boxes. LOW STOCK Warning! Just $99.99 per pair!

NOS NIB Sylvania 6V6GT- Special black plate design at a special price! $99.99 per matched Pair!

NOS RCA 6V6GT smoked glass black plates- Revered as the warmest and smoothest 6v6 power output tube with same amazing dynamic range as its younger cousin the RCA 6V6GTA. This tube is one of the best choices for that old Fender Deluxe reverb or any other guitar amp calling for a 6V6GT!  Pick up a pair today!    We just aquired a bulk packed tray of 100 pieces and all are branded Jewel (matched between 1-3mA and supplied in white boxes).   Very rare to find now, all matching date codes of April 1952! Just $149.99 per platinum matched pair!

ANOS RCA 6V6GT- These grey smoked and clear glass black plate tubes were all placed into equipment, so we do consider them used, but all test at NOS levels or higher. Now just $99 per matched pair while supplies last!!

NOS RCA 7408- Premium RCA 6V6GTA!!! Amazing clarity just like its younger brother the RCA6V6GTA but much beefier! Huge upgrade! We got a good qty of these so we can provide matched pairs and quads!  Just $174.99 per pair! Enter qty 1 for matched pair, emter qty 2 for matched quad.

ANOS RCA 6V6GTA- The #1 ranked RCA 6V6GTA is probably the best 6v6 power output tube with amazing dynamic range all the way through from deep low end to warm mids and beautiful highs, this tube is by far the best choice for that old Fender Deluxe reverb!  Pick up a pair today! Used but tested screened and matched.  Very Low Stock!!! $129.99 per pair

Bendix Red Bank 5992 "super" 6V6 matched pairs-The ultimate "super" 6V6 built to withstand armageddon by the famous Red Bank Bendix factory. All pairs were double matched on our maxi matcher and double tested on our unforgiving computerized Hickok 118B. Additionally, we aquired approx 100 pcs (all light use military pulls but all tested at NOS levels or higher) so our matching for current draw is extremely tight (1-3mA)!  Just $249.99 per pair. Enter qty 2 for matched quads.

GE Made 7355 NOS- Side getter NOS branded as RCA Just $69.99 per pair!

Wonderful for Harman Kardon A 500 integrated amp and A 50K linear amp.

Also for Stromberg Carlson ASR 880 1961 and Fender tweed amps! SOLD OUT!

NOS Amperex EL34- Extremely rare, this tightly matched pair of Mullard made XF4 EL34's sound amazing! Perfect sound and articulation at a special price! Out of Stock!

NOS Mullard EL34- Matched pair (approx 7 mA apart) of Mullard made XF3. Slightly further apart than we like for Hifi, but should be fine in most guitar amp applications. Put them in that old guitar amp and hear the magic! Specially reduced price. Sold!

NOS Amperex XF5 EL34- This tightly matched pair of Amperex made XF5 are probably the closest you can get to the elusive metal base EL34's without the metal base price! Double D getters labeled as westinghouse with acid etched Great Britian designation. Hurry! Just $349.99 per pair! SOLD OUT!

NOS Korean Fat Boy EL34- Almost identical construction to the famed Sylvania fat boy, these mil spec tubes were made for the US Military in South Korea.  Tightly matched pair, super punchy for a super low price! Out of Stock!

NOS EI EL34- Made by EI, this pair matched within 2 ma of each other! Special BLOWOUT price! Out of stock!

NOS Tesla (NOT JJ) E34L--  Special quality premium version of the fantastic NOS Tesla EL34 brown base.  We have a very limited number of pairs these.. Superb sound and an identical copy of the GEC KT77.  $299.99 per pair.

NOS Siemens Telefunken RFT EL34- Regardless of the branding (Siemens Telefunken Marshall RCA CEI Westinghouse STC, the list goes on and on), these German made EL34 are simply awesome and were standard equipment in many Marshall guitar amps in the 70's and 80's!  Perfect for hifi or guitar amplifiers,,,superb dynamic range and far surpasses any current production EL34!  We were able to get over 100 pcs from a supplier (currently STC, Westinghouse, and unbranded available) so we can provide extremely tight matched pairs or quads!

Here is a testimonial we received from a Marshall JCM 2000 DSL owner:

" Dear Tejas Tubes,

These Siemens EL 34 and 12ax7 (pre war yugo Siemens CV492) tubes simply made my amp rock! Even the noise and hiss has practically disappeared. I've had Groove tubes, S.E.D. C-wings,Tung-sol and the Siemen tubes are by far the best sounding tubes I've ever heard. I would like to thank Tejas tubes Technical Department for testing and checking my tubes for the best quality.Thank you for such a quality product."  Martin Buffone

NOS Siemens Telefunken RFT EL34 Identical Current Pairs (mA draw no more than 0.5 mA apart with most being identical) Perfect for HIFI applications! Just $169.99

NOS Siemens Telefunken RFT EL34 Platinum Matched Quads(1-3mA) just $339.99

NOS Sino Shuguang EL34A / 6CA7- Welded plates, dual getters, and great sound for a SUPER LOW PRICE! This lot was actually made specifically for the Jackson Guitar company. Each tube carefully tested and matched on our Maxi-matcher. Unbelievable blowout price just $34.99 per matched pair! (Enter qty of 2 for quad etc)