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Rectifier Tubes
Rectifier tubes for compatible tube amplifiers. The rectifier type affects operating voltages, warm-up and dynamic sag, so substitutions must follow the manufacturer's documentation.
Official warranty
From the manufacturer or importer
Installment payments
Up to 7 PrivatBank or 6 monobank payments
Delivery in Ukraine
Nova Poshta and store pickup
Professional matching
By circuit, tube type and operating conditions
Main tube types and applications
| Tube type | Typical application |
|---|---|
| 5Y3GT | Higher voltage drop and pronounced sag under load |
| 5U4GB | Higher current capability with noticeable dynamic compression |
| 5AR4 / GZ34 | Slow warm-up and comparatively low voltage drop |
| 5V4G | Intermediate characteristics for compatible circuits |
| EZ81 | Nine-pin rectifier for lower-power amplifiers |
| 6CA4 / EZ81 | US and European designations for the same family |
How to choose the correct tubes
- Match the exact tube designation to the amplifier manual or circuit requirements.
- Choose matched pairs or quartets for the output stage when required by the design.
- Check whether power-tube replacement requires bias adjustment.
- Do not substitute a different rectifier type unless the manufacturer explicitly allows it.
- Low noise and low microphonics are particularly important in the first preamp stage.
Safe replacement
Dangerous high voltage can remain inside a tube amplifier after it is switched off. If replacement requires opening the chassis, taking measurements or setting the bias, use a qualified technician.
Tube and compatible equipment brands
A reference list of global tube, amplifier and tube-equipment manufacturers. It does not mean every brand is currently stocked by SoundsGood.
JJ ElectronicElectro-HarmonixSovtekTung-SolMullardGenalex Gold LionSvetlanaTelefunkenTADGroove TubesMesa/BoogieRuby TubesPSVANEShuguangWestern ElectricRCAGESylvaniaPhilipsAmperexValvoSiemensBrimarMarconiOsramGECMazdaRFTEiTeslaReflectorVoskhodFotonMelzSaratovSED Winged CNationalRaytheonHytronKen-RadCBSJANBendixCunninghamArcturusAdmiralWestinghouseZenithMagnavoxMotorolaHitachiMatsushitaNECToshibaLarsenUltronZaerixHaltronEdicronGolden DragonPM ComponentsNorthern ElectricLinlaiFull MusicKR AudioEmission LabsElrogEATSophia ElectricTakatsukiAyonBlack SableTube Amp DoctorTube Store Preferred SeriesHarley BentonMarshallFenderVoxOrangeBlackstarPeaveyLaneyHiwattSoldanoBognerFriedmanDiezelEnglVictoryEVHPRSSuhrDr. ZMatchlessBad CatMagnatoneSuproTone KingCarrMorganTwo-RockDumbleTrainwreckMesa EngineeringAmpegGallien-KruegerAshdownAguilarMarkbassTrace ElliotHartkeEBSDarkglassEichWarwickHughes & KettnerKochRiveraRandallCrateCarvinJet CityBugeraKustomAcousticSunnMatampGreenSound CityParkWEMSelmerDynacordEcholetteKlemtGibsonEpiphoneGretschSilvertoneValcoHarmonyKayPremierStandelMusic ManBedrockDean MarkleyLab SeriesPolytoneRolandBossYamahaIbanezLine 6KemperNeural DSPBluGuitarRevvFortinMezzabarbaBrunettiCornfordCeriatoneDriftwoodKSROmega AmpworksScience AmplificationMilkman SoundBensonSwartVictoriaLouis ElectricSatelliteTopHatDivided by 13
Tenders, Prozorro and institutional purchasing
SoundsGood prepares technical specifications, quotations and documents for government, municipal and corporate customers. We can match compatible tubes for stage, studio and educational equipment.
Frequently asked questions
Can I install a tube with a similar designation?
Only when the amplifier manufacturer explicitly permits the substitution. A similar pin arrangement does not guarantee electrical compatibility.
What is a matched pair or quartet?
Power tubes with closely matched electrical characteristics tested for operation together in one output stage.
Does the amplifier need a bias adjustment?
It depends on the circuit. Fixed-bias amplifiers often require adjustment after power-tube replacement.
Why does a tube make noise or ring?
Possible causes include microphonics, wear, poor socket contact or a fault elsewhere in the amplifier.
Do tubes change the sound?
Working tubes of different constructions can vary slightly in gain, clean headroom, noise and saturation character.
When should tubes be replaced?
When noise increases, power falls, operation becomes unstable or a technician confirms wear. Routine replacement without diagnosis is not always necessary.
Can I replace only one power tube?
A matched set is usually preferred in paired or quartet output stages unless the manufacturer specifies otherwise.
How do I order the correct type?
Provide the exact amplifier model, installed tube markings and required quantity; SoundsGood will check compatibility.
Order amplifier tubes from SoundsGood
For a compatibility check, provide the amplifier model and currently installed tubes: +380 73 060 01 01