Vacuum Tube - 12AX7, Tung-Sol Reissue
Pictured: Regular
Pictured: Gold
Pictured: Regular
Pictured: Gold
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Starting at: $15.95
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Russian made reissue of the original Tung-Sol. The Ultimate 12AX7. Big, warm, and musical. High Gain, ultra-low microphonics, and superb linearity with a dynamic 3-D sound.
- Improved reissue of the Vintage NOS Tung-Sol 12AX7
- Superb linearity with a dynamic 3-D sound
- Preferred by guitar technicians for re-tubing and upgrading, but equally well suited for HiFi applications
- 7025/ECC83 equivalent
| Pin Type | Our Part Number | UPC/EAN |
|---|---|---|
| Gold | T-12AX7-GOLD-TUNG | 841358101786 |
| Regular | T-12AX7-TUNG | 683274020556 |
| Capacitance, grid to plate | 1.7 pF | |
| Capacitance, input | 1.6 pF | |
| Capacitance, output | 0.46 pF / 0.34 pF | |
| Grid Voltage, negative (Ug-) | 50 V | |
| Grid Voltage, positive (Ug+) | 0 V | |
| Heater Current | 150 mA / 300 mA | |
| Heater Voltage | 6.3 V / 12.6 V | |
| Heater to cathode voltage (Uk/f) | 180 V | |
| Plate Dissipation (Wa) | 1 W | |
| Plate Voltage (Ua) | 300 V |
| Packaging Dimensions | Gold version | T-12AX7-GOLD-TUNG | 2.75 in. × 1 in. × 1 in. |
| Regular version | T-12AX7-TUNG | 1.1 in. × 1.1 in. × 2.9 in. | |
| Weight (Packaging) | Gold version | T-12AX7-GOLD-TUNG | 0.035 lbs. |
| Regular version | T-12AX7-TUNG | 0.04 lbs. |
| T-12AX7-TUNG - Regular version | Capacitance, grid to plate | 1.7 pF |
| Capacitance, input | 1.6 pF | |
| Capacitance, output | 0.46 pF / 0.34 pF | |
| Grid Voltage, negative (Ug-) | 50 V | |
| Grid Voltage, positive (Ug+) | 0 V | |
| Heater Current | 150 mA / 300 mA | |
| Heater Voltage | 6.3 V / 12.6 V | |
| Heater to cathode voltage (Uk/f) | 180 V | |
| Plate Dissipation (Wa) | 1 W | |
| Plate Voltage (Ua) | 300 V | |
| T-12AX7-GOLD-TUNG - Gold version | Capacitance, grid to plate | 1.7 pF |
| Capacitance, input | 1.6 pF | |
| Capacitance, output | 0.46 pF / 0.34 pF | |
| Grid Voltage, negative (Ug-) | 50 V | |
| Grid Voltage, positive (Ug+) | 0 V | |
| Heater Current | 150 mA / 300 mA | |
| Heater Voltage | 6.3 V / 12.6 V | |
| Heater to cathode voltage (Uk/f) | 180 V | |
| Plate Dissipation (Wa) | 1 W | |
| Plate Voltage (Ua) | 300 V |
 Specification Sheet for Gold | T-12AX7-GOLD-TUNG |
| Specification Sheet for Regular | T-12AX7-TUNG |
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Specifications, Files, and Documents
Questions and Answers
Click each question to see its answers.
2 answers
I am replacing the tube that came with my Pangea headphone amp. it has 12ax7b written on it. will the 12ax7 work for the pangea hp-101?
Asked by Anonymous on October 13th, 2016.
October 13th, 2016
Staff Member
Hi, all 12Ax7's are comparable with each other. This will work just fine.
12AX7, 12AX7A, 12AX7B, 12AX7C, 12AX7W, 12AX7WA, 12AX7WA-B, 12AX7 WA-C, ECC83, E83CC, and the 6681 are basically all exactly the same tube. The 6681 was the same as the E83CC, and was a 12AX7 made for mobile use (Used in equipment in vehicles like cars, trucks, jeeps, airplanes, ships, boats, trailers, tanks, etc.). The 7025 and 12AX7A were a low noise 12AX7. These tubes are all interchangeable with one another. The 5751 is a lower gain 12AX7 and is also 100% interchangeable with any 12AX7 too.
2 answers
I have a VOX VT20X how will it sound with a Tung Sol 12AX7?
Asked by Anonymous on March 9th, 2017.
March 9th, 2017
Staff Member
The Tung Sol is a very warm and creamy 12AX7 with nice detail. We would suspect that you would get these attributes with the Vox.
Awesome tube for your vox, you will love it, get one matched at 100 100.
1 answers
So I have a couple of Presonus Studio Channel Mic Preamps and A DBX 376 and a one of those Eurotech dual ch. mic pres. I've heard that the Presonus Tube Ch.s can benefit from replacing the tubes. Are these good for my application?
Asked by Anonymous on October 13th, 2016.
October 13th, 2016
Staff Member
Please see our article on 12AX7's. https://www.amplifiedparts.com/tech_corner/12ax7_comparison_of_current_made_tubes It will rate tubes by gain and noise.
1 answers
What is the difference in gain and tone with the ecc83 and ecc803s (gold pin variation of this) and why isn't the gold pin listed as an ecc803s when it is on the box/label?
Asked by Anonymous on May 2nd, 2017.
May 2nd, 2017
Staff Member
Both of these Tung Sol 12AX7's are ECC803S. They are very close but the gold pin will have slightly less gain in the mids. The ECC83 is a mid gain tube and will have less gain than a 12AX7 (ECC803S). For a comparison of all the 12AX7's we carry, click on the tech corner link at the top of this page.
1 answers
Looking for breakup at low volume for practice with 1969 Bassman AB165. Would high gain preamp tubes help get there?
Asked by Anonymous on October 22nd, 2018.
October 22nd, 2018
Staff Member
Absolutely. High gain preamp tubes combined with low numbered power tubes should provide your amp with earlier access to breakup.
1 answers
Hi everybody, my thought and question is as follows:
Is the Tungsol 12ax7 gold pin nearly same as the standard Tungsol 12ax7??
Or is there a small difference in gain or in EQ power??
Thanks for reply and help jay
[email protected]
Asked by Anonymous on October 24th, 2018.
October 24th, 2018
Staff Member
They are very close but the gold pin will have slightly less gain in the mids. For a comparison of all the 12AX7's we carry, click on the tech corner link at the top of this page.
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The following items can be substituted for this product. While not necessarily exactly the same, they will function as replacement items in your project.
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Product Reviews
So far every Tung Sol style of reissue tubes have been very good consistent quality and decent tone with a cost vs tone quality that is simply very difficult to beat...
The major consideration and favor I intially appreciated and sought this tube was the fact that I have yet to experience a microphonic tube!!!!
I install and roll many preamp tubes and these arw the tops for having the least microphonics of any preamp tube types today. It seems that at the timeframe of about three or four years ago I could not purchase any production tube that wasnt microphonic.... I spent much time searching out, purchasing and testing used many many literal hundred scores of vintage tubes due to such a problematic issues of microphonic tubes.
I have not had a single 12ax7 Tung Sol reissue appear microphonic. 2016 I bought so many brand new tubes that came directly out of the box new direct from the big three retailers. 98% microphonic rejection rate! Every retailer acting stupid. This retailer being especially difficult to overcome hurdles and policy regarding the return and rejection of microphonic tubes shipped.
Boy what a pleasant surprise once I purchased my first TungSol reissue and at a price that is the same and/or less than the other brands...
I own a Fender American Hand-Wired '64 CUSTOM PRINCETON REVERB which had some microphonic tubes.
After reviewing some possibilities I decided to completly retube with new re-issue Tung-Sol tubes (2x6V6, 3x12AX7, 1x12AT7 and 1x5AR4). This setup sounds a little warmer and more dynamic than the stock tubes in my opinion. I'm thrilled withe the results! Great service (ease of purchase and prompt shipping) from Antique Electronic Supply. Highly recommend!
very good product..
Been rolling in my Reeves 225 bass amp & found I preferred the Tung Sol to the Mullard.
Less gank on the upper midrange. I will be trying a few other brands as well.
Two Tung-Sol 12AX7 tubes were used to replace some old tubes that had low emission. These brought back the full-bodied sound the H-K A-300 was capable of. It sounds great now like it did when the amp was new.
I run a heavily modified, re-voiced Super Champ XD with a 12" Celestion 70/80, and it has a big, fat smooth & defined sound, and also gives jut the right amount of volume boost to the Champ, coupled with Ruby 6V6's in the power stage. The distortion has a softer, more British edge. Does wonders for my Strat and Tele, and brings out the fullness of my D'Angelico EXL-1. I can use this amp on louder gigs now.
Quieter and longer lasting than the JJ's. Everyone who has had work done in our shop loves them now. Our go-to 12ax7 unless otherwise requested.
These preamp tubes really brought the Monoprice 15 watt amp into a territory that only higher-priced amps occupy
Excellent service, fast shipping! Thank you
Not only is this tube a ‘night and day’ difference to the Chinese clone which I was using, but also the amazing service, communication, packaging and ultra swift postage of Antique Electronic Supply, is exemplary. Brilliant in all respects.