Vacuum Tube - 12AX7 / ECC83, Mullard Reissue
Russian-made Mullard Reissue 12AX7 dual triode. Large sound stage with excellent detail. Factory selected for low noise and microphonics. Great for hi-fi amps.
Premium high gain Twin Triode ideal for use in HiFi preamplifiers. Replicates the sound signature of the large plate Mullard ECC83 tubes popular in the 1960s and 1970s.
- Large sound stage with excellent detail
- Factory selected for low noise and lowest microphonics
- ECC83/7025 equivalent
RoHS Compliant
Accessory Items:
| No measurements are currently available for this product. Please contact us if you have any questions. |
| Packaging Dimensions | 1 in. × 1 in. × 2.8 in. | |
| Weight (Packaging) | 0.04 lbs. |
 Specifications | All Models |
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Questions and Answers
Click each question to see its answers.
1 answers
Would this work well in a Crate GT200D?
Asked by Anonymous on February 12th, 2017.
February 14th, 2017
Staff Member
This would be a great choice if you wanted to add some British flavor to your amp.
1 answers
Will this work for the phone stage of a Dynaco PAS-4 pre amp?
Asked by Anonymous on March 29th, 2018.
March 29th, 2018
Staff Member
If it calls for a 12AX7 then yes this tube will work.
1 answers
Would this work as a replacement for Groove Tube ST-12AX7-R tubes?
Asked by Anonymous on April 12th, 2018.
April 12th, 2018
Staff Member
Yes this will work in any situation where a 12AX7 is required.
1 answers
Can i use this for my phase inverter.VoxAC30
Asked by Anonymous on June 26th, 2018.
June 26th, 2018
Staff Member
Yes, this would be a great option for your amp.
1 answers
Will this give me better High Gain, than JJ EC803s on my Micro Terror?
Asked by Anonymous on August 21st, 2018.
August 21st, 2018
Staff Member
According to both the "12AX7 Comparison of Current Made Tubes" chart and the product review above, these shine in high gain applications. Keep in mind, tube tone is subjective and can not guarantee you will have the same experience.
1 answers
Would this be a good tube for a Marshall VS8040? It was made in 1994 still has the original tube. Thanks!
Asked by Anonymous on December 11th, 2018.
December 11th, 2018
Staff Member
Tube selection is highly subjective and although some would consider this a great tube for that amp, other may not feel that to be true. We suggest referring to our 12AX7 comparison of current made tubes: https://www.tubesandmore.com/tech-corner/12ax7-comparison-current-made-tubes
1 answers
How will this work in a Blues Jr.?
Asked by Anonymous on August 8th, 2021.
August 9th, 2021
Staff Member
Tube tone and performance are subjective, but to get an idea how this may work in your amp, you can compare them to the tubes currently in your amp using our 12AX7 comparison chart: https://www.tubesandmore.com/tech-articles/12ax7-comparison-current-made-tubes
Substitute Products
The following items can be substituted for this product. While not necessarily exactly the same, they will function as replacement items in your project.
Product Reviews
Stellar service provided by Antique Electronic Supply, as always, made many orders but my first review.
This pre tube, Mullard 12ax7, is one of the finest on the market. Have half a dozen spread around various Marshalls.
They run beautifully in my JCM900 SL-X, JCM800 SC20H, 74' Superlead especially, Studio Vintage SV20H, Jubilee 2555X,
Jubilee 2525H, Class 5 combo loves'em too! Also running them with the Mullard EL34, JJEL34ll, JJEL34L,
Tung-Sol EL34B, and EH EL34 and EH 6AC7, these have all been excellent power tubes for me. Throw in a few other new pre tubes like, JJ803, JJecc83s, EH 12ax7gold, EH 7025, Tung-Sol 12ax7gold, all work perfectly with my Marshalls, and are on par, in my experience, with my vintage NOS collection, pre60' RCA, Raytheon and GE, 70' Lorenz, RFT, EI, GE etc. Will be ordering again soon, especially power tubes, keep them fresh people, and your amp will love you back!
Cheers Konabud,
This is my go to 12ax7 for vintage Fisher and Scott restorations. Wide open soundstage and sonically flat response. NOS tubes are too expensive, and the sonic differences are marginal at best. A good tube should be neutral, and for me these tubes deliver on that. I will say that the bottle is a bit larger than a vintage RCA or Telefunken, requiring slide on tube shields to be expanded a bit. Otherwise I have thousands of hours of run time, with zero issues so far.
Big improvement for my Hiwatt Custom Little D. Gets closer to DG sound.
This has become my goto 12AX7 for vintage Fisher integrated restorations. Solid performer across the audio spectrum, and so far no reliability issues.
Nice sounding tube
I always prefer this one for the first gain stage of guitar amplifier of any kind, Fender or Marshall or whatever it is. And can get good satisfaction from my customers as always. I don't put it for the later gain stage though.
Bought these to use as preamp tubes in a Peavy VMP-2 Mic Pre. They sound great! Super warm and full range.
This is my first choice in 12AX7 tubes, Very balanced tone