# Vacuum Tube - 12AX7, Tung-Sol Reissue

Pictured: Regular
Pictured: Gold
Pictured: Regular
Pictured: Gold
Click to zoom in
Customer Images:

# Vacuum Tube - 12AX7, Tung-Sol Reissue

Starting at: $15.95 In Stock 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 SKU: T-12AX7-TUNG-X Item ID: 004454 Brand: Tung-Sol Type: Part Numbers Pin TypeOur Part NumberUPC/EAN GoldT-12AX7-GOLD-TUNG841358101786 RegularT-12AX7-TUNG683274020556  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 ## My Project Lists ### You must be logged in to add items to a project list. ## Questions and Answers Click each question to see its answers. Asked by Anonymous on August 18th, 2016. August 19th, 2016 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. Asked by Anonymous on October 13th, 2016. October 13th, 2016 Some people will match a preamp tube and this is what is typically referred to a "balanced." We do not offer this service. Most of the time is is unnecessary. Asked by Anonymous on October 13th, 2016. October 13th, 2016 Hi, all 12Ax7's are comparable with each other. This will work just fine. Asked by Anonymous on March 9th, 2017. March 9th, 2017 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. Asked by Anonymous on May 2nd, 2017. May 2nd, 2017 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. Asked by Anonymous on October 21st, 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. 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. 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. ## Product Reviews 4.78 out of 5 based on 23 reviews - September 26th, 2010 5 out of 5 If it is in one of MY personal amps it is usually NOS USA, UK, Germany, Holland, Japan, etc. This new production tube is my personal favorite of all the current production ECC83s. The Ehx is OK, but quality varies, and the same is true for JJ. I not only test these in guitar amps and tube audio, but run them on either a Western Electric KS 15750, or Trippplet 3444 tube tester(s) with mA meters on the grid, cathode, and plate, and if I feel like real torture I will fire up a Tektronix 570 curve tracer. These not only sound nice, but matching them is easier than with a lot of new production tubes. These I use in many of my custom built amps clones and vintage amps. With Fender amps I usually use these exclusively. This is when I am not using real RCA, GE or Sylvania NOS tubes. I may substitute a 7025 NOS for the front end. In Marshall amps I will usually use these in everything, but the PI. That I will stick a select Ehx into that spot. New Sensor really did a great job with their "Tungsol" reissue tubes. Their 5881 is a favorite of mine too, but it won't replace the real deal JAN USA 5881. Sound is subjective, but putting a tube on$10K of test equipment is not. These do very well in both arenas. These are not great hi fi tubes, but are very nice for guitar, and bass.

- July 20th, 2010
5 out of 5

I play through a Marshall JCM601 with a Fender American Deluxe 2006 Strat. I use the Tungsol 12AX7 in my preamp section and Electro-Harmonix 12AX7's for the next three tubes. I am using Mullard EL34s for the output, and I swear by the sound that I am getting with this amp. It has a Celestion 12 inch speaker.I swear by the Tungsol 12AX7 in the preamp section and that finalized by the Mullards is definitely the original sound of the 1970 Marshall Super Lead 100 1959 head on a smaller scale.I will wind this up by saying that I play ALL types of music ... period.

http://myspace.com/wallydow

- July 10th, 2010
5 out of 5

Amp: Jet City JCA20H
Speakers: 2 Jet City cabs w/Eminence Spkrs.
Axe: Gibson Les Paul Studio w/Duncan 59's N/B

I tried a butt-load of different tubes (mesa 12Ax7 SPAx7, JJ-ECC83-S, Groove Tubes GT12AX7-C, and the stock China 12AX7-B. And EL84 output tubes JJ, Groove Tubes, Mesa, and Stock China) No set or combination of the aforementioned were dialing it in. The tone was either too harsh, or muddy, or the bass was lost or something. Until, on a wild hair, I found what nailed it beautifully a Tungsol 12AX7 in V1 and V2, Mesa SPAX7 in V3/PI spot, and matched Sovtek EL84 power tubes. It sounded much warmer and smoother at all volume levels and it breaks up right where I wanted it to.

To be fair I wasn't looking for more headroom since I rarely play totally clean anyway. But with the exception of the GT12AX7-C, all the others cleaned things up too much for my taste. The GT's were just a tad harsh or edgy. The combo of Tungsol and Sovtek produce the early distortion without sounding too trebley and the individual notes are still well defined at higher volume levels. For reference My settings when playing at home: Gain 6 or 7, Bass 8, Mid 3, Treb 5, Pres 3, and Vol 2 - 4. For Club size venues I kick up the Mid to 5, Treb to 7, Pres to 5, Vol to 6 - 8, then I adjust the gain to dial it in (but it doesn't change much) I'm sold on this combination thanks to the Tungsols. I am extremely pleased with how it all comes together now and for this amp at least it'll be Tungsol for life.

## 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.