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3 From 22
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SED Tubes
S5U4G 5U4G / 5C3S / 5Ц3C NOS  blackplate
5U4G / 5C3S / 5Ц3C NOS blackplate
5U4G rectifier tube made by old Svetlana factory (5Ц3C/5C3S). This is the sought after version with the special black anodes.

From €39.00 *
Remember Part Number: S5U4G
Psvane & Treasure Audio Tubes
PS-5U4G-HIFI 5U4G PSVANE HIFI-Series
5U4G PSVANE HIFI-Series
5U4G is glass- shell, 8-pin socket, directly heated full-wave rectifier tube,5U4G is very similar with 274B and 5Z3P, which can be replaced by each other. Heater Uf……………5V If…………… 3A Maximum Rating anode inverse peak voltage……1550V anode...

€39.00 *
Remember Part Number: PS-5U4G-HIFI
Tube Amp Doctor GmbH
RT502-MASTER 5U4G-SV TAD PREMIUM SELECTED
5U4G-SV TAD PREMIUM SELECTED
The Big Bulb Big bulb vintage rectifier tube, used in high-end audio amplifiers but also in modern recto-type amps, such as the Mesa Boogie Double/Triple Recitifer. It can replace the 5U4GB. Its tone is smoother than that of a solid...

From €42.80 *
Remember Part Number: RT502
RCA
S5U4GB-RCA 5U4GB RCA/USA  NOS-NIB
5U4GB RCA/USA NOS-NIB
NOS RCA 5U4GB rectifier tube, original boxed NOS-NIB picture may differ in colour and print style

€89.00 *
Remember Part Number: S5U4GB-RCA
NOS Tubes
S5U4GB 5U4GB SYLVANIA NOS-NIB, USA
5U4GB SYLVANIA NOS-NIB, rectifier tube
SYLVANIA / PHILIPS made 5U4GB all pieces we've ever seen made by Sylvania are beautiful blackplate constructions. Our stock contains various Sylvania packing and marking styles most in original boxes (NIB) picture might differ, various...

€64.00 *
Remember Part Number: S5U4GB
NOS Tubes
S5V4G-MASTER 5V4G / GZ31 ST-Shape (NOS)
5V4G / GZ31 ST-Shape (NOS)
rectifier tube, beautiful ST-Shape "coke bottle" NOS / NIB Novosibirsk, built 1960-1970s can replace the 5Y3GT/WGT in many amps like the Fener CHAMP (5F1) or DELUXE (5E3) and provides a little extra power resulting in a little extra...

From €29.00 *
Remember Part Number: S5V4G
Soviet NOS
S5V4 5V4GA / GZ31 Gleichrichter
5V4GA / GZ31 (Russia)
5V4GA / GZ31 Rectifier (Russia) can also replace a 5Y3GT to provide slightly better headroom

€15.01 *
Remember Part Number: S5V4
JJ - Electronic s.r.o.
NN523 5Y3 S JJ Electronic
5Y3 S JJ Electronic
5Y3 S Rectifier tube by JJ Electronics 5Y3 DOUBLE ANODE RECTIFYING TUBE

€21.80 *
Remember Part Number: NN523
NOS Tubes
S5Y3 5Y3GT/WGT/WGTB/GTA NOS USA
5Y3GT/WGT/WGTB/GTA NOS USA
5Y3GT/WGT/WGTB/GTA 6087 NOS USA various brands, mostly made by Sylvania

€54.00 *
Remember Part Number: S5Y3
NOS Tubes
S5Y4 5Y4G / CV1857 Duo-Diode, NOS USA
5Y4G / CV1857 Duo-Diode, NOS USA
5Y4G / CV1857 Duo-Diode, NOS / NIB USA varous brands, picture might differ

€32.00 *
Remember Part Number: S5Y4
Hint!
General Electric
S6005W-MASTER 6005W aka 6AQ5 / EL90  NOS Pentode,  USA
6005W aka 6AQ5 / EL90 NOS Pentode, USA
6005W JAN/GE aka 6AQ5A / 6AQ5W / EL90 / 6HG5 / 6669 / CV4019 NOS-NIB Pentode the 6005W is the Super-6AQ5 made by General Electric for JAN=Joint Army-Navy he W marking at the end of the type number refers to the particularly robust design...

From €8.68 * €16.90 *
Remember Part Number: S6005W
BRIMAR UK Tubes
S6060 6060 / CV4024 BRIMAR  Yellow-T (aka 12AT7WC, E81CC, 6201)  NOS/NIB
6060 / CV4024 BRIMAR Yellow-T (aka 12AT7WC, E81CC, 6201) NOS/NIB
6060 / CV4024 BRIMAR Yellow-T (aka 12AT7WC, E81CC, 6201) NOS/NIB "yellow T" UK made in the late 50s and early 60s.. 1950s vintage, larger, black wing plates, white label, and the yellow T decal with the Brimar name on the back of the...

From €49.80 *
Remember Part Number: S6060
General Electric
S6080-GE 6080  (6AS7G/ECC230) GE / USA , Leistungsdoppeltriode
6080 (6AS7G/ECC230) GE / USA , Twin-Power-Triode
6080 GE(aka ECC230) is a NOS drop-in replacement for the 6AS7G. made by General Electric USA, NOS-NIB

€24.80 *
Remember Part Number: S6080-GE
RCA
S6080-RCA 6080  (6AS7G/ECC230) RCA / USA , Leistungsdoppeltriode
6080 (6AS7G/ECC230) RCA / USA , Twin-Power-Triode
6080 RCA (aka ECC230) is a NOS drop-in replacement for the 6AS7G. made by RCA USA, NOS-NIB

€48.00 *
Remember Part Number: S6080-RCA
Sylvania Electric Products
S6080 6080 / 6080WC (6AS7G/ECC230) SYLVANIA  USA , Leistungsdoppeltriode
6080 / 6080WC (6AS7G/ECC230) SYLVANIA USA , Twin-Power-Triode
the 6080WC (aka ECC230) is a NOS drop-in replacement for the 6AS7G.

€24.80 *
Remember Part Number: S6080
Sylvania Electric Products
S6189-SYL 6189 / CV4003 SYLVANIA/Philips USA
6189 / CV4003 SYLVANIA/Philips USA
6189 / 6189W (aka 12AU7WA/E82CC) SYLVANIA/Philips USA NOS double triode The 6189W is a premium grade 12AU7 that is ruggedized for reliable operation in military/industrial mobile, shipboard, and aviation communications equipment. This...

From €39.00 *
Remember Part Number: S6189-SYL
General Electric
S6189-GE 6189 General Electric GE / USA NOS-Doppeltriode
6189 General Electric GE / USA NOS double triode
6189 General Electric GE / USA NOS double triode In Audio-Amplifiers the GE 6189 has an outstanding warm tone and well balanced pleasing response. The 6189W Philips or Sylvania appears a bit brighter and has great details and definition....

From €39.00 *
Remember Part Number: S6189-GE
RCA
S6201-RCA-MASTER 6201 (12AT7WA) RCA Boonton, USA  NOS-NIB
6201 (12AT7WA) RCA Boonton, USA NOS-NIB
6201 (12AT7WA) RCA Boonton, USA NOS-NIB does replace 12AT7, E81CC, ECC801s, CV4024, M8162 and 12AT7WA/WB/WC improved long-life version of ECC81 / 12AT7 original boxed, RCA made and selected for Boonton Electronics Corp, military and...

€59.00 *
Remember Part Number: S6201-RCA
NOS Tubes
S6336A 6336A/B Dopel-Triode  NOS
6336A/B Duo-Triode NOS
6336A/B Duo-Triode NOS

€67.50 *
Remember Part Number: S6336A
Hint!
Sylvania Electric Products
S6350 6350 FIVE-STAR GE/USA  NOS-NIB
6350 FIVE-STAR GE/USA NOS-NIB
General Electrics 6350 Blackplate 1960s, NOS-NIB, made in USA double-triode blackplate version, recommend for demanding applications like the VTL MB450 current stock: GE 5-STAR version (pictures might differ)

€39.00 *
Remember Part Number: S6350
TESLA Electron Tubes
S6360 6360 / QQE03-12 / RS1029 Duo-Tetrode
6360 / QQE03-12 / RS1029 Duo-Tetrode
QQE03-12 / 6360 / RS1029 Duo-Tetrode, NOS TELSA

From €8.14 *
Remember Part Number: S6360
JJ - Electronic s.r.o.
NN395 6550 JJ Electronic
6550 JJ Electronic
JJ 6550 JJ Electronic

From €53.80 *
Remember Part Number: NN395
General Electric
S6550A-GE 6550A GE  NOS   (USA)
6550A GE NOS (USA)
THE LEGEND: : 6550A General Electric NOS / NIB (USA) aka CV5220, KT88 extremely rare in unused condition from military surplus stocks

From €189.00 *
Remember Part Number: S6550A-GE
Tube Amp Doctor GmbH
RT28 6550C-SVT TAD Premium Matched ( SED 6550C winged -C-)
6550C-SVT TAD Premium Matched ( SED 6550C winged -C-)
TAD 6550C-SVT : a very powerful and dependable choice with TAD Premium Matching. Stock tube of many hi-fi manufacturers and in the legendary Ampeg SVT bass amp. The TAD 6550C-SVT has a very linear and focused sound. Very consistent in...

From €120.00 *
Remember Part Number: RT281
3 From 22

Brand Tubes - glowing advocates of good sound

Brand tubes are dear to us. Anyone who has once played their instrument through a good, matched tube amp with a suitable cabinet and heard it, will find it more than difficult to move away from analog amplification.

Dense, organic sounds, clear development, and a more lively, freer sound design are the results of good and high-quality valves.

Whether our customers need specifically matched valves for preamp, power amp, or other installation positions: Our huge assortment of brand valves perfectly complements our own TAD Premium Tubes and offers the right sound sources for all needs!

Matching - combining suitable valves

Analog technology in general, and tube amps in particular, act almost like organic individuals. Their components interact with each other like organs in a living body. No wonder then, that replacing individual components can impair the overall performance - sometimes with serious consequences for the sound.

Therefore, for our brand tubes, we rely on our proven matchings, where we combine specifically matched valves and offer them to our customers in sets of 2, 4, up to 24.

Our matching is the result of decades of experience in tube technology and is offered in two categories:

Standard matching

Even though the manufacturing standards of our brand tubes are so high, it is beneficial for the components from Haltron, Electro-Harmonix, GEC Valves, or BRIMAR to be specifically matched to each other.

Premium matching

Amplifier valves work together and should therefore be matched to each other. In particular, the individual gain performance of each pentode or triode must be matched.

Selected quality - our testing conditions for brand tubes

Our experience has taught us: Life is too short for bad sound. Therefore, we rigorously test our TAD brand valves. And only the best receive our Premium Selected designation.

These components meet the highest standards and have passed the following tests with flying colors:

  • Noise Test
  • Microphony Test
  • Gain Test
  • Acoustic Tests
  • Shock Test
  • Listening Test
  • Uniform Signal Strength / Performance Test

 

Such tested components, whether pentode, triode, or preamp valves, meet the highest requirements to do what we all want in amplifiers: Sound!

Ordering brand tubes from Tube Amp Doctor - precision and passion

In 1993, we decided to enter the market with amplifier valves and components for amps, speakers, and the like. Our enthusiasm for handmade and authentic tube sound has only grown since then. Today, we can offer our customers selected and hand-picked goods at fair prices, giving them the necessary tools in their search for their own, individual sound. With over 650,000 components in stock, service in wholesale and retail, and a love and enthusiasm for good sound, Tube Amp Doctor is here to support all musicians with advice and action! Convincing service, convincing brand tubes - that's Tube Amp Doctor.

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