Power Output Tubes Currently Available

(If you don't see the power tubes you need, please email us! We have over 4000-5000 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 Maxi-Matcher to further match power output tubes for current draw usually within 1-5 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!

Attention International Buyers!

Please note that we ship Express Mail International which requires more postage than the auto-calculated amount, so please click on the button below to add the $25.00 USD extra to your shopping cart to cover the additional shipping costs for your order!

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

GE NOS 7027A- Great for those old ampeg guitar amps!  These are NOS in original boxes! Get them while you can! Just $129.99 per pair!

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!  Just $199.99 per pair!

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 boxesoriginal boxes! Get them while they last! Just $274.99 per Platinum matched pair! (each tube matched on our Maxi-matcher within 1-3 mA of each other) Platinum matched quads (all tubes within 1-3 mA) available for just $549.99! (Just enter qty 2 when ordering)!

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. Please email for price/test results.

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!

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. Just $409.99 per matched pair! All pairs are OUT OF STOCK! We do have some KT66 singles available,,,please email us for details.

NOS 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!   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!!!

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 $65 per pair! (Please note: silk screening and boxes may vary from pictures shown but all are Sylvania grey 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 $129.99!

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 $119.99 per quad! Low Stock Warning!

NOS NIB Siemens EL84 6BQ5- We recently aquired almost 250 pcs of these pre-war Yugo made KM4 Philips/ Mullard version of the EL84 branded as Siemens. We have super tight matching and SUPER LOW pricing 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!! Perfect for Manley amps, and guitar amps! Just $109.99 per quad! Get them while they last! Hurry, only 8 quads remain!!! LOW STOCK Warning!

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 $99.99 per pair! OUT OF STOCK !

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. Just $74.99 per pair!

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

NOS RCA 6V6GT- Revered as the warmest and smoothest 6v6 power output tube with same amazing dynamic range as its younger cousin the RCA 6V6GTA. These grey 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. 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!  Just $99.99 a pair! Compare elsewhere at $250 per pair!

NOS NIB 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!  Just $149.99 a pair!

NOS NIB RCA 6V6GTA (1970's)- Same as above only manufactured in 1970's,,,exact same tone and clarity at a special price! Just $119.99 per matched 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.

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 $199.99! Save $40.00!

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 Siemens Telefunken RFT EL34- Regardless of the branding, 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 so we can provide identical current drawing pairs or quads, and platinum matched pairs and quads (within 1-3 mA) also!

NOS Siemens Telefunken RFT EL34 Platinum Matched Pairs (1-3mA apart) just $149.99

NOS Siemens Telefunken RFT EL34 Platinum Matched Quads(1-3mA) just $299.99

NOS Siemens Telefunken RFT EL34 Identical Current Pairs (mA less than .5 apart with most being identical) Perfect for HIFI applications! Just $179.99

NOS Siemens Telefunken RFT EL34 Identical Current Quads (mA less than .5 apart with most being identical) Perfect for HIFI applications! Just $359.99

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 $24.99 per matched pair! (Enter qty of 2 for quad etc)