Preamp:doubletriodes

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1 From 8
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Tube Amp Doctor GmbH
RT002-MASTER
12AT7 / ECC81 TAD Premium Selected (balanced)
Rich-sounding Reverb Driver - Also Great for Headphone Amps! Low noise tube, selected for best symmetry and balance. A strong driver tube and a wounderfully rich-sounding reverb driver. Also used in the great Brocksieper EARMAX / EARMAX...

From €19.80 *
Part Number: RT002
Tube Amp Doctor GmbH
RT004
12AT7WC-USA NOS TAD Premium Selected
The Original US-made mil. Grade JAN Version in TAD Premium NOS-Selection quality This tube is used in old Fender amps or hi-fi applications and produces a smooth reverb. It replaces the 6201, E81CC and ECC801. upgrades ECC81 and 12AT7....

From €37.80 *
Part Number: RT004
Tube Amp Doctor GmbH
RT005-MASTER
12AU7A / ECC82 TAD Premium Selected (balanced)
The Perfect Choice for Stereo Audio Applications - Ideal as a Balanced Driver Latest revision providing great musical performance and rich tone. This TAD 12AU7A / ECC82 has especially strong systems which are selected to provide two...

From €19.80 *
Part Number: RT005
Tube Amp Doctor GmbH
RT085-MASTER
12AU7WA / E82CC (aka 6189W) TAD Premium...
TAD 12AU7WA Premium NOS-Selection, made in USA This long-plate 6189W is the High-end version of ECC82 and 12AU7A tubes. Beloved for the best tone and superior definition with ease. The 6189W is a direct upgrade for 12AU7A, E82CC and...

From €39.00 *
Part Number: RT085
Tube Amp Doctor GmbH
RT065-MASTER
12AU7WA / E82CC TAD Premium Selected (balanced)
Very quiet but powerful. This great symmetrical and balanced tube is your perfect choice for demanding Hi-Fi amps, and works perfectly as a pushing driver stage in instrument amplifications, also. Somewhat more stringent and defined with...

From €26.50 *
Part Number: RT065
Tube Amp Doctor GmbH
RT001-BPD
12AX7A-C TAD, BALANCED PHASE DRIVER Selection
Perfectly BALANCED PHASE DRIVER Tube !! A perfectly balanced 12AX7 will allow the tube output stage to perform at its optimum for smooth tone and definition. The overall responsiveness will be significantly improved by revealing the full...

From €25.50 *
Part Number: RT001-BPD
Tube Amp Doctor GmbH
NN008-GRY
12AX7WA - grey short plate
the grey plate version of our ECC83WA

€8.50 *
Part Number: NN008-GRY
Sylvania Electric Products
S12AX7A-SYL
12AX7WA - PHILIPS / SYLVANIA Long Plates; NOS/USA
A reliable classic American military spec 12AX7 with warm tone, very smooth and tonally balanced throughout the frequency range.. These are JAN versions from later 1970 to early 80s and have long gray plates with copper grid posts and...

€99.00 *
Part Number: S12AX7A-SYL
Tube Amp Doctor GmbH
RT006-MASTER
12AX7WA-R TAD Premium Selected
Maintain Your Amp's Original Tone! Very low noise but slightly less gain than a regular 12AX7. Soft highs and edgy, dominant mids. Our recommendation when your amp has microphonic issues. This tube is used in many Fender amps made today....

From €26.50 *
Part Number: RT006
JJ - Electronic s.r.o.
NN037
12AY7 JJ Electronic
12AY7 (6072a) JJ Electronic Base: NOVAL Uf = 6,3 or 12,6 V If = 300 or 150 mA Typical Characteristics: Ua = 250 V Ug = -4 V Ia = 3,0 mA S = 1,75 mA/V Ri = 22,8 kΩ μ = 40 Limiting Values: Ua = 300 V Ug = -50 V Wa = 1,5 W Uk/f = ±90 V Ik =...

From €10.40 *
Part Number: NN037
Tube Amp Doctor GmbH
S12AY7
12AY7 / 6072a NOS / USA
12AY7 / 6072a NOS / USA mixed US brands (RCA, GE, Sylvania, Tungsol etc.) gematched pairs are same manufacturer and same construction note: very limited supply. we can't back-order when sold out.

€79.50 *
Part Number: S12AY7
Tube Amp Doctor GmbH
RT070-MASTER
12AY7/6072A HIGHGRADE TAD Premium Selected
Tweed Up Your Amp! Vintage tone for original vintage Fender tweed amps. The original tube for all those Fender® tweed amps from the 50s. Brings back the original sound to your tweed amp. The 6072a is also used in high quality tube...

From €32.50 *
Part Number: RT070
Tube Amp Doctor GmbH
RT007-GB
12AY7/6072A TAD Balance-Selected, GOLD-PIN...
TAD 12AY7 with GOLD-PINS Stereo-HiFi-Selection Especially for Audio-Stereo applications selectet 12AY7 / 6072a with extremly low tolerances in amplification factor for perfectly balanced stereo channels. Note: this selection is not...

From €36.00 *
Part Number: RT007-GB
Tube Amp Doctor GmbH
RT007-MASTER
12AY7/6072A TAD Premium Selected
Tweed Up Your Amp! > Vintage tone for original vintage Fender tweed amps. The original tube for all those Fender® tweed amps from the 50s. Brings back the original sound to your tweed amp. Q: When does a preamp tube become a Premium...

From €24.50 *
Part Number: RT007
JJ - Electronic s.r.o.
NN046
12BH7-A JJ-Electronic
12BH7-A double-triode (JJ-Electronic)

€14.20 *
Part Number: NN046
General Electric
S12BH7-GE-MASTER
12BH7A NOS/NIB GE
General Electrics (USA) 12BH7A double triode, NOS

From €49.00 *
Part Number: S12BH7-GE
RCA
S12BH7-RCA
12BH7A NOS/NIB RCA
12BH7A NOS, RCA (amc branded) Strong driver tube, used in certain HiFi amps, Hammond organs and many vintage Ampeg Amps like the good ol' Ampeg SVT.

€59.00 *
Part Number: S12BH7-RCA
Sylvania Electric Products
S12BH7-SYL-MASTER
12BH7A NOS/NIB SYLVANIA
SYLVANIA (USA) 12BH7A double triode, NOS

From €49.00 *
Part Number: S12BH7-SYL-MP
Tube Amp Doctor GmbH
RT043-MASTER
12BH7A-STR TAD Premium Selected (balanced)
Maximum of Reliability - Outstanding Tonal Quality! 1st Choice for Ampeq SVTs! The all-new TAD 12BH7A-STR combines the best sonic and mechanical performance of the NOS RCA black plate with advantages of the GE version. A maximum of...

From €19.50 *
Part Number: RT043
Tube Amp Doctor GmbH
NN043
12BH7A-STR TAD/OEM
12BH7A-STR TAD/OEM white boxed, no TAD selection

€12.80 *
Part Number: NN043
Tube Amp Doctor GmbH
S7247
12DW7 (7247) Magnavox / USA NOS / NIB
the 12DW7 / 7247 is the original stock tube for many Hammond and Ampeg amplifiers like the vintage classic Ampeg SVT. picture might differ

€49.00 *
Part Number: S7247
Tube Amp Doctor GmbH
RT044
12DW7 / 7247 TAD Premium Selected
Asymmetric double triode as used in old Ampegs. Q: When does a preamp tube become a Premium Selected tube? A: All preamp tubes labeled Premium Selected have passed the following tests: - Low Noise Test - Microphonic Test - Gain Test -...

€24.50 *
Part Number: RT044
General Electric
S5751-GE2
5751 G.E. NOS/USA double mica, grey plate
5751 General Electric USA, NOS double mica, grey plate Lower Gain ECC83 type tube. great for clean tone with mild top end compared with "regular" ECC83/12AX7 Pro's choice for improved Fender Clean-Tone a bit warmer mids comparted to the...

€69.00 *
Part Number: S5751-GE2
General Electric
S5751-5-STAR
5751 GE 5-Star*****, NOS triple mica, grey plate
GL-5751 General Electric Five-Star *****, USA/CANADA, NOS triple mica, grey plate. mica support rods, high reliability series The GE Five-Star high-reliability series are specially designed, manufactured and tested; they arenot...

From €79.50 *
Part Number: S5751-5-STAR
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