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Tube Amp Doctor (TAD) Vacuum Tubes

Tube Amp Doctor (TAD) Brand Vacuum Tubes

5881WXT-thumb.jpg

Tube Amp Doctor (TAD) 5881WXT-R Vacuum Tube

4150001
TAD 5881WXT-R Vacuum Tube


The popular TAD 5881WXT is a dependable 6L6GC type tube with more modern and aggressive character. Slightly less power than a 6L6GC but with special bite in the upper mid range which allows your tone to cut through on stage. 


The 5881WXT is known as a stock tube in many recent Fender amps but we would recommend it for hard rock and detuned tuned guitar playing. As used by Fender®, Engl®, Mesa Boogie® etc. 


All orders for TAD power tubes in quads (4) or pairs (2) will come factory matched
Quantity
Price
1 – 9$28.50
10 – 19$27.08
20 – 99$25.65
100 +$25.08

per Piece
.3 lb
Sold Out.

Sold Out.
tube-amp-doctor-TAD-6550a-str-vacuum-tube-4150004-thumb.jpg

Tube Amp Doctor (TAD) 6550A-STR Vacuum Tube

4150004
TAD 6550A-STR Premium Selected
 
NEW VERSION: since Sept. 2010 the TAD 6550A-STR is manufactured with a stronger and exceptionally pure anode material combination. In conjunction with the extended TAD burn-in and formatting process, the 6550A-STR reaches an outstanding consistency and stability and outperforms even the 6550C. This makes the 6550A-STR withstand even the most critical application like e.g. the Ampeg SVT. (Fits only without the tube retainer!

The TAD 6550A-STR is a faithful remake of the vintage GE 6550A with a heavy straight glass envelope, polished metal base and the authentic triple getter construction. A balanced tube known for their incredible bottom end and rich mids. Smooth, liquid bass, natural sounding voices and openness made this tube amazingly popular for bass guitar amps and High End HiFi applications. The ratings of the TAD 6550C-STR meet or exceed those of the classic 6550A tubes and can be used with great performance in any application asking for 6550.

All orders for TAD power tubes in quads (4) or pairs (2) will come factory matched.

Quantity
Price
1 – 9$48.00
10 – 19$45.60
20 – 99$43.20
100 +$42.24

per Piece
.3 lb
Sold Out. Back in Stock Soon!

Sold Out. Back in Stock Soon!
6L6GC-SVT-thumb.jpg

Tube Amp Doctor (TAD) 6L6GC-SVT Vacuum Tube

4150002

TAD 6L6GC-SVT Premium Selected



The TAD Premium Selected 6L6GC-SVT tubes come directly from the original Russian Svetlana factory. It is known to be very dependable and delivers a nice balanced tone with smooth top end. Recommended for multi-channel high-gain amps.

All orders for TAD power tubes in quads (4) or pairs (2) will come factory matched.

Quantity
Price
1 – 9$65.00
10 – 19$61.75
20 – 99$58.50
100 +$57.20

per Piece
.3 lb
 
EL84M_Selected-thumb.jpg

Tube Amp Doctor (TAD) EL84M Vacuum Tube

4150003

TAD EL84M Vacuum Tube



The TAD EL84M provides mids that cut through and tight bass response making your playing heard even at lower volumes or complex stage sound situations. This tube is rated at 10,000 operating hours making the EL84M the most rugged and long-lasting EL84 on the market.

Tube diameter = 22.5mm

Due to its diameter of 22.5mm the TAD EL84-M does not fit in older Marshall DSL401 and UK made VOX AC15 TBX amplifiers. 

All orders for TAD power tubes in quads (4) or pairs (2) will come factory matched.

Quantity
Price
1 – 9$28.00
10 – 19$26.60
20 – 99$25.20
100 +$24.64

per Piece
.3 lb
 
12AT7_ECC81_Selected.jpg

Tube Amp Doctor (TAD) 12AT7 / ECC81 RT002 Vacuum Tube

4150101
Tube Amp Doctor (TAD) 12AT7 / ECC81 RT002 Vacuum Tube

Low noise tube, selected for best symmetry. Strong driver tube and wonderful rich sounding reverb. Used also in the great Brocksieper EARMAX / EARMAX PRO headphone amp and other High-End Audio amplifiers.
Quantity
Price
1 – 9$14.25
10 – 19$13.54
20 – 99$12.83
100 +$12.54

per Piece
.1 lb
 
12AU7A_ECC82_Selected.jpg

Tube Amp Doctor (TAD) 12AU7A / ECC82 RT005 Vacuum Tube

4150071
Tube Amp Doctor (TAD) 12AU7A / ECC82 RT005 Vacuum Tube

The TAD 2AU7A / ECC82 Premium Selected in its latest revision with pleasing sonical performance and rich tone. This TAD-12AU7A / ECC82 has strong systems which are selected to provide two symmetric triodes as for stereo applications or ideal balanced driver stage; perfect choice for HiFi stereo applications and as driver stage. replaces also 6N10, 6189W, 5814A etc.
Quantity
Price
1 – 9$14.25
10 – 19$13.54
20 – 99$12.83
100 +$12.54

per Piece
.05 lb
 
12AX7A-C_Selected.jpg

Tube Amp Doctor (TAD) 12AX7A-C Vacuum Tube

4150100
Very good gain, tight deep bass, fat mids and silky top end with overall definition and brightness. Selected with balanced systems and recommended for guitar amps to improve overall response. Best for clean tones as well as for those deep-bass required for modern preamps. recommended for all positions in amps with medium gain level or High-Gain Amps for V2+ positions. As for V1 in general but especcially for higher gain amps or phono/audio-amps, we recommend the RT010 7025 Highgrade or the RT030 E83CC/7025 Highgrade. The TAD 12AX7A-C can replace any 7025, 12AX7WA, 12AX7WB, 12AX7LPS, 12AX7EH, ECC83 or E83CC. 1st choice for: Boogie®, Brunetti®, Diezel® , Engl®, Fender®, Hughes & Kettner®, Koch®, Laney®, Marshall®, Soldano®, Trace Elliot® and so many more.
Quantity
Price
1 – 9$17.00
10 – 19$16.15
20 – 99$15.30
100 +$14.96

per Piece
.05 lb
 
TAD-12AY7-6072A-Vacuum-Tube-4150103-thumb.jpg

Tube Amp Doctor (TAD) 12AY7/6072A Premium Selected Vacuum Tube

4150103
TAD 12AY7/6072A Vacuum Tube

Tube Amp Doctor 12AY7/6072A Premium Selected vacuum tube. Bring back that Vintage tone. The 12AY7 was used in all of the 50's Fender Tweed Amps. A low gain, low noise tube.
Quantity
Price
1 – 9$25.75
10 – 19$24.46
20 – 99$23.18
100 +$22.66

per Piece
.1 lb
 
12BH7A-STR_Selected.jpg

Tube Amp Doctor (TAD) 12BH7A Vacuum Tube

4150080
TAD 12BH7A-STR Premium Selected (Part No: RT043) The all-new TAD 12BH7A-STR combines the best sonic and mechanic performance of the NOS RCA black plate with the GE version. A maximum of reliability with outrageous tonal quality makes the new balance selected TAD 12BH7A-STR the first choice for Ampeg SVT´s, the Blackstar HT-5 and high-end applications
Quantity
Price
1 – 9$17.50
10 – 19$16.63
20 – 99$15.75
100 +$15.40

per Piece
.05 lb
 
5751_Selected-thumb.jpg

Tube Amp Doctor (TAD) 5751 Vacuum Tube

4150009

5751 TAD Premium Selected

Especially this low-noise tube is recommended for best clean tone with big bottom, warm midrange and silky top end. Performs great for HiFi too! Replaces any 12AX7A/WA, ECC83, 7025 etc. 
The TAD Selected 5751 is the first choice for vastly improving the clarity, smoothness, and vintage tone character of most guitar amps!
They still have plenty of gain so if you have a high-gain preamp that does not have that classic crunch characteristic, the 5751 tube will do wonders.
In hifi preamps and CD players, the TAD Selected 5751 will lower noise floor and sound smoother and clearer in place of many 12AX7 tubes.

NOTE: SRV used a 5751 to improve his clean tone with vintage Fender amps producing that thick and three-dimensional bold tone.

Quantity
Price
1 – 9$19.95
10 – 19$18.95
20 – 99$17.96
100 +$17.56

per Piece
.3 lb
 
5U4G-thumb.jpg

Tube Amp Doctor (TAD) 5U4G Vacuum Tube

4150007
Big bulb vintage rectifier tube as used in Mesa Boogie Double/Triple Recitifer and others Replaces 5U4GB.
Quantity
Price
1 – 9$19.50
10 – 19$18.53
20 – 99$17.55
100 +$17.16

per Piece
.3 lb
 
5Y3GT-Selected-thumb.jpg

Tube Amp Doctor (TAD) 5Y3GT Vacuum Tube

4150006
The rectifier tube for the smaller vintage amps like the 5F1 Fender Tweed Champ or the Tweed Deluxe 5E3. This small bottle version is the closest in performance and reliability to the vintage 5Y3GT of the 1950s.
Quantity
Price
1 – 9$17.00
10 – 19$16.15
20 – 99$15.30
100 +$14.96

per Piece
.3 lb
 
6L6-GC-STR.jpg

Tube Amp Doctor (TAD) 6L6GC-STR (Tall Bottle) Factory Matched Vacuum Tube

4150000

6L6GC-STR RCA-Style black-plate TAD PREMIUM Selected

TAD 6L6GC-STR RCA-Style black-plate
TAD has remade the all-time favorite 6L6 classics of RCA and GE. The TAD 6L6GC-STR is the perfect choice for the tone of the rock legends with powerful deep bass and clear but pleasing airy top end. The new 6L6GC-STR forwards the low end with pressure and has all the guts and bite to perfectly accomplish all the rocking sounds from R'n'R like SRV to modern NU-Metal and everything in between.

This TAD 6L6GC-STR combines the famous reliability of the American made Philips/Sylvania STR series plus TAD's beefed-up black-plate system like the highly regarded vintage RCA 6L6GC tubes. TAD joined the best of both worlds! Silky top end combined with deep bass response and lots of headroom make this tube a living classic. 

The TAD 6L6GC-STR and the TAD 6L6WGC-STR have TAD's exclusive black-plate designs, gold gird wire, double getter construction, no-noise filaments and 1.2mm thick, heavy duty glass envelope.

Along with the TAD 6L6WGC-STR (GE-Style) is this TAD 6L6GC-STR TAD's recommendation for excellent tone and maximum lifetime among the 6L6GC type tubes.
Quantity
Price
1 – 9$25.75
10 – 19$24.46
20 – 99$23.18
100 +$22.66

per Piece
.3 lb
 
4150005s.jpg

Tube Amp Doctor (TAD) 6L6GC-STR Tall Bottle Factory Matched Tube OEM Pack /50

4150005
OEM 50pc Box
One grade TAD 6L6GC-STR (Tall Bottle)

TAD 6L6GC-STR RCA-Style black-plate TAD has the remakes of the all times favorite 6L6 classics of RCA and GE. The TAD 6L6GC-STR is the perfect choice for the tone of the rock legends with powerful deep bass and clear but pleasing airy top end. The new 6L6GC-STR forwrds the low end with pressure and has all the guts and bite to perfectly accomplish all the rocking sounds from R'n'R like SRV to modern NU-Metal and them live and breath. This TAD 6L6GC-STR combines the famous reliability of the american made Philips/Sylvania STR series plus the our beefed-up black-plate system like the highly regarded vintage RCA 6L6GC tubes. We joined best ofboth worlds!Silky top end combined with deep bass responce and lots of headroom make this tube a living classic. The TAD 6L6GC-STR and the TAD 6L6WGC-STR have our eclusive black-plate desings, gold gird wire, double getter construction, no-noise filaments and 1.2mm thick heavey duty glass envelope. Along with the TAD 6L6WGC-STR (GE-Style) is this TAD 6L6GC-STR our recommendation for excellent tone and maximum lifetime among the 6L6GC type tubes.
$690.00
per Piece
10 lb
 
tad-6l6wgc-50pack-thumb.jpg

Tube Amp Doctor (TAD) 6L6WGC-STR (Short Bottle) Factory Matched Tube OEM /50

4150015
Our recommendation for single ended Amps like Fender Champ 12, Ibanez Valbee and others. TAD has the remakes of the all times favorite 6L6 classics of RCA and GE. The TAD 6L6WGC-STR has the warm lower mids and silky top end; exactly like the classic GE version of the 50's and 60's. The complex midrange and sweet heights are dedicated t oexcellence in a class of its own. The perfect choice for vintage amps like the Bassman, Twin or Super Reverb. The TAD 6L6WGC-STR is our prefered choice for classic tone with warm cleans and rich, sweet mids when pushed. The TAD 6L6WGC-STR is only 80mm high (without pins) and does replace 5881 or 6L6WGB tubes as well. The TAD 6L6GC-STR and the TAD 6L6WGC-STR have our eclusive black-plate desings, gold gird wire, double getter construction, no-noise filaments and 1.2mm thick heavey duty glass envelope. Along with the TAD 6L6GC-STR (RCA-Style) is this TAD 6L6WGC-STR our recommendation for excellent tone and maximum lifetime among the 6L6GC type tubes.
$690.00
per Piece
10 lb
 
6L6WGC-STR.jpg

Tube Amp Doctor (TAD) 6L6WGC-STR (Short Bottle) Factory Matched Vacuum Tube

4150010
Quantity
Price
1 – 9$24.72
10 – 19$23.48
20 – 99$22.25
100 +$21.75

per Piece
.2 lb
 
6V6GT-STR.jpg

Tube Amp Doctor (TAD) 6V6GT-STR Factory Matched Vacuum Tube

4150021
This all new TAD 6V6GT-STR combines the exceptionally sweet voiced NOS 6V6GT like the RCA or GE 6V6GTY updated to withstand higher operating voltages due to raised AC supply. At the same time this TAD 6V6GT-STR produces surprisingly tight bass which you wouldn't expect except with the most select real NOS 6V6GTs.
Quantity
Price
1 – 9$23.69
10 – 19$22.51
20 – 99$21.32
100 +$20.14

per Piece
.13125 lb
 
7025_E83CC_Highgrade.jpg

Tube Amp Doctor (TAD) 7025 / E83CC Highgrade (E83CC Highgrade) Cz Vacuum Tube

4150050
PREMIUM selected Quality for the most demanding amp stages. Great for warm clean tones and creamy overdrive. Recommended for 1st gain stage. Upgrades 12AX7A and ECC83 tubes. Replaces E83CC tubes. the HIGHGRADE Selection is the tip-of-the-top quality with lowest noise (microphony, hum, hiss) level. Tipically only 0,5-2% out of the whole production yield of this tube make it to meet the HIGHGRADE requirements. NOTE: due to extreme demanding TAD-Selection criteria this item is limited availability. Please check the information about availability. The TAD 7025 Highgrade can replace any ECC83, E83CC, 12AX7, 12AX7A, 12AX7M, 12AX7WA/WB/WC/LPS/EH, 5751 or 7025. In case this tube is currently not available we recommend: Replacement tube: RT080
Quantity
Price
1 – 9$20.09
10 – 19$19.09
20 – 99$18.08
100 +$17.68

per Piece
.08 lb
 
7025_S_Selected.jpg

Tube Amp Doctor (TAD) 7025 S RT011 Mullard Style Vacuum Tube

4150125
TAD 7025 S Mullard Style The new TAD 7025-S is a faithful reproduction of the legendary original Mullard ECC83 valve which was made in England till the late 1960s. This tube is regarded as the holy grail among the double-triode preamp valves. The extra thick mica spacers support the rugged mechanical construction and the careful TAD quality control proceedure ensures performance stability and low microphonics. The TAD 7025S delivers rich, harmonically complex tone and midrange warmth that is just outstanding compared to any other currently manufactured tube today. We recommend this tube for classic british style amps (rather than for modern high-gain amps) as well as for vintage-style open-back combo amps to achieve a stunning complex tone with silky smooth but rich tone. The TAD 7025 S can replace any ECC83, E83CC, 12AX7, 12AX7A, 12AX7M, 12AX7WA/WB/WC/LPS/EH, 5751 or 7025. Great for warm clean tones and creamy overdrive. Upgrades 12AX7A and ECC83 tubes. Replaces E83CC tubes. somewhat warmer in tone than our 7025 Highgrade (RT010) yet open with defined bass response. tech-tip: especcially recommended in second positions or tone stacks in vintage British amps
Quantity
Price
1 – 9$36.75
10 – 19$34.91
20 – 99$33.08
100 +$32.34

per Piece
.1 lb
 
7025-WA.jpg

Tube Amp Doctor (TAD) 7025 WA Highgrade Vacuum Tube

4150120
The TAD 7025 WA delivers full gain with smooth top end. No microphony issues even with the most sensitive preamps. The 7025 WA supports a fat midrange and creates a bold tone with lots of overtones. Played clean the TAD 7025 WA delivers a warm liquid tone which is very responsive to dynamic playing. Overdriven the 7025 WA provides lots of sustain with well defined mid-range punch. - recommended choice for most demanding guitar amp input/V1 stages - extremly low microphony selected for most sensitive applications - smooth top end - full gain - fat mid range - tight low end - outstanding low microphony - low noise - balanced systems - triple mica construction - replaces: 12AX7, 12AX7A/WA/WB/WC, ECC83, 7025, SPAX7-A We recommend the RT080 TAD 7025WA as Inputtube for guitaramplifiers like Diezel ("Pit Spezial"), Blackstar, Brunetti, ENGL, Fender, Marshall, Mese Boogie, Orange etc. The TAD HIGHGRADE Selection is especially recommended for use with demanding input stages (V1) and for all applications demanding the best selection for extremely low microphony 7025 / ECC83 / 12AX7A type tubes. For regular applications the RT008 TAD ECC83 WA Selected can be used with the same sound and gain structure.
Quantity
Price
1 – 9$19.00
10 – 19$18.05
20 – 99$17.10
100 +$16.72

per Piece
.05 lb
 
ECC83WA_Selected-thumb.jpg

Tube Amp Doctor (TAD) ECC83 WA Vacuum Tube

4150008
The new TAD ECC83 WA Selected provides a stunning warm tone, thick midrange and sweet natural overtone harmonics. It has been designed by TAD with triple mica construction for low noise performance. Perfect for clean or moderate gain preamps as well as for high-gain amps from V2 position (for V1/Input stage the HIGHGRADE selection RT080 is recommended) It´s great dynamics, low noise operation and balanced warm tone makes the TAD ECC83 WA to be an excellent all-rounder with great value for money. 
- smooth top end 
- full gain 
- fat mid range 
- tight low end 
- very low microphony 
- low noise 
- balanced systems 
- triple mica construction 
- replaces: 12AX7, 12AX7A/WA/WB/WC, ECC83, 7025 
 The TAD ECC83WA Premium Selection is recommended for most applications for low microphony performance. For especially demanding input stages (V1) and for all applications demanding an extremely low microphony 7025 / ECC83 / 12AX7A type tube we recommend the RT080 TAD 7025WA HIGHGRADE. For "normal" applications the RT008 TAD ECC83 WA Selected can be used with same sound and gain structure.
Quantity
Price
1 – 9$13.50
10 – 19$12.83
20 – 99$12.15
100 +$11.88

per Piece
.3 lb
 
EL34B-STR.jpg

Tube Amp Doctor (TAD) EL34B-STR Factory Matched Vacuum Tube

4150030
Sensational new high-gain (Gm) EL34 tube with very dynamic tone. Extra strong mil. grade construction with gold plate grid. Perfect for High-End HiFi and best choice for all Marshall®, Hiwatt®, Orange® etc. to achieve that big tone they became famous for. Very close to the legendary UK made Mullard EL34. The TAD EL34B-STR can replace any 6CA7 or KT77.
Quantity
Price
1 – 9$20.75
10 – 19$19.71
20 – 99$18.68
100 +$18.26

per Piece
.13 lb
 
Tube-Amp-Doctor-(TAD)-EL34B-STR-Factory-Matched-Vacuum-Tube-OEM-50t.jpg

Tube Amp Doctor (TAD) EL34B-STR Factory Matched Vacuum Tube OEM /50

4150035
Sensational new high-gain (Gm) EL34 tube with very dynamic tone. Extra strong mil. grade construction with gold plate grid. Perfect for High-End HiFi and best choice for all Marshall®, Hiwatt®, Orange® etc. to achieve that big tone they became famous for. Very close to the legendary UK made Mullard EL34. The TAD EL34B-STR can replace any 6CA7 or KT77.
$741.60
per Piece
7 lb
Sold Out. Back in Stock Soon!

Sold Out. Back in Stock Soon!
EL84-STR-1209.jpg

Tube Amp Doctor (TAD) EL84-STR Factory Matched Vacuum Tube

4150110
The all new TAD-EL84STR does combine best of both worlds. TAD chose the thickest glass option and most heavy construction like the Russian EL84M and sonically most promising cathode and plate option to meet and exceed the tonal quality of the EL84-Cz. Finally TAD added the gold grid wire to limit stray characteristics and to improve overall reliability. The result is the best EL84 currently produced. No compromise! Very good in Epiphone Valve Junior.

Diameter = 22.5mm. 
Due to its diameter of 22.5mm the TAD EL84-STR does not fit in older Marshall DSL401 and UK made VOX AC15 TBX amplifiers. The only tube which fits these amp is the EL84-EI (ordering number: NN471)
Quantity
Price
1 – 9$16.00
10 – 19$15.20
20 – 99$14.40
100 +$14.08

per Piece
.13 lb
 
RT501--canvas-x_800-y_800-thumb.jpg

Tube Amp Doctor (TAD) GZ34 / 5AR4 RT501 Vacuum Tube

4150045
A faithfull reproduction of the Mullard/VALVO GZ34. Pure power and the typical sag is the distinguishing characteristic of the most popular guitar amps of the 1960s guitar heroes till today.
Quantity
Price
1 – 9$23.00
10 – 19$21.85
20 – 99$20.70
100 +$20.24

per Piece
.15 lb
 
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