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About this product
Product Information
If you are a hobbyist who enjoys working on electronics from the 1950s and 1960s, you might be wondering about the quality of vacuum tubes manufactured in Russia. Well, this type of technology helped to put Sputnik in orbit, so it likely can keep that audio amplifier in the family room working for a few more years. The Sovtek 12AX7 vintage tube - also known as the ECC83 - was invented about seven decades ago and can still be found in hi-fi audio tube amplifiers. In its heyday, the tube was known for superior low-noise operation. Today, the Sovtek version offers affordability and convenience for the vintage electronics aficionado. Once worn parts are replaced, the vacuum tube technology produces a thick, velvet sound, with the occasional crack or pop simply adding character to the charged-up melody.Product Identifiers
BrandSovtek
eBay Product ID (ePID)140993104
Product Key Features
Type12AX7/Ecc83
Additional Product Features
Country/Region of ManufactureRussian Federation
Ratings and reviews
Most relevant reviews
- 24 Oct, 2015Most favourable review
Best phase inverter fixed bias tube made
I tested many 12ax7 tubes Vintage and New Production in the phase inverter PI sockets in several amps . This Sovtek 12ax7Lps is the cream of the crop especially in Blues or Rock amps with some gain crunch going. Full Chords do not turn into Mush or over distort like most all others . Larger plate tubes generally have more lower bass than a Short plate 12ax7 . But as a V1 tube or being over driven in the OD socket it is not the best choice imop. I failed to find a better PI tube Vintage Sylvania was good but the Sovtek 12ax7Lps sounds the best . Some say it need not be a perfect balance on the Triodes and Guitar amp use it may be true . The phase inverters take high gain over driven tones and can be driven into mushy distortion but not for the Lps sovtek ! The tube lets your chords ring out every note even with CRUNCH going heavy , awesome tones are the result !!!Verified purchase: Yes
- 10 Jul, 2018Most critical review
Ok for the money...
I gave these a try in the phono stage of my Cary SLP90 preamp. For $25 a pair they are ok; a little thin in the bottom end and scattered in the midrange. No contest when compared to NOS 12AX7 RCA black plates, but to be fair they are a third of the price. I did like them better than the reissued Mullards I had been using.Verified purchase: Yes
- 10 Mar, 2018
Top hat.
Using this in the primary tube position, in a Little Bear 12AX7 phono stage, nuances and solidity improve. More of a sense of 3D perception arrives. Using two more in a Yaqin MS84L amp, gives more of the same, as well as a subjective 1/2 an octave deeper extension. Well made, beautiful product instills confidence, and pride of ownership. Highly recommended.Verified purchase: Yes
- 07 Nov, 2015
A fantastic, inexpensive, tube that sounds great
A very good replacement for many stock 12AX7's that come with new equipment.Verified purchase: Yes
- 22 Oct, 2015
Sovtek 12ax7lps
Best phase inverter tube you can buy except for the gold lion which is the same thing with gold pins but costs more money.Verified purchase: Yes
- 22 Mar, 2017
THANK YOU RUSSIA!
Great tube for the V1 and P.I. of your preamp..Verified purchase: Yes
- 22 Jun, 2016
Great value
Nicely packaged quick shipping.Verified purchase: Yes
- 08 Dec, 2015
eccellente grazie
Verified purchase: Yes
- 14 Dec, 2015
thanks!!
Verified purchase: Yes
- 14 May, 2017
After several hour use one of them is dead.
IVerified purchase: Yes
