Riverstone Audio, 6N3P-E Matched Pair (2 tubes) – Vintage NOS Russian Vacuum Tubes Replacement for 6N3 / 6N3P / 5670 / 5670W / 396A / 2C51 – Amplitrex Tested/Matched – Platinum Grade Pair (6N3P-E)

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Riverstone Audio, 6N3P-E Matched Pair (2 tubes) – Vintage NOS Russian Vacuum Tubes Replacement for 6N3 / 6N3P / 5670 / 5670W / 396A / 2C51 – Amplitrex Tested/Matched – Platinum Grade Pair (6N3P-E)

  • ONE PAIR (2 pcs) – 6N3P-E NOS Vacuum Tubes. The 6N3P-E is a vintage Russian dual-triode 9-pin vacuum tube that was manufactured at the Relector plant in Saratov. This is the long-life (denoted by the “E” suffix) version of the 6N3P tube with 3 mica spacers and are considered an exceptional-quality audio tube.
  • UPGRADE FOR 6N3 TUBES – 6N3P-E tubes are an upgrade/replacement for Chinese 6N3 and Russian 6N3P tubes and are generally suitable as a substitute for US/European 5670 / 5670W / 396A / 2C51 tubes (this should be verified by the amp manufacturer). IMPORTANT: AMPLIFIER DAMAGE CAN OCCUR IF YOU SUBSTITUTE THE WRONG TYPE OF TUBE – Before ordering CAREFULLY determine the type of tube used in your amplifier (tube type is printed on a tube).
  • TESTED AND MATCHED by experienced engineers using Amplitrex tube testers to evaluate the electrical parameters of the tubes. Tubes are evaluated for plate current (ip), mutual conductance, tube gain, H-K leakage and noise. After matching, the tubes are evaluated for sound quality in an amplifier. If any deficiencies are found the tubes are not sold. LESS THAN 35% of the 6N3P-E tubes we test pass our standard for high fidelity audio use and are selected for these Platinum Grade Pairs.
  • TEST RESULTS CLEARLY MARKED on the tube boxes with data labels for ip, Gm and tube gain provided. Tubes chosen for these special matched pairs have good balance between tube sections and close electrical parameter matching between the tubes (ip and Gm are within 10% and tubes are matched for gain within 5%). Individual matched pairs will have identical date codes (date codes for the tubes we offer range from 1974 to 1992).
  • 3 YEAR WARRANTY – BUY WITH CONFIDENCE. Our Platinum Grade 6N3P-E vacuum tubes are backed by our no-nonsense 3-year warranty. THE BEST WARRANTY AVAILABLE in the audio tube business. We guarantee that the tubes selected for our matched pairs test at NOS levels. For protection during shipment, we use custom tube boxes (Riverstone Audio’s “Tube Cradle” boxes) and an outer shipping box. Vacuum tubes sold by Riverstone Audio will have the “Riverstone Audio” name, logo and QC label on the boxes.

See User Reviews And Ratings On Amazon

More Tube Amplifiers To Choose From

Dayton Audio HTA100BT Hybrid Stereo Tube Amplifier with Bluetooth USB Aux Phono in Sub Out 100W
130 Reviews
Dayton Audio HTA100BT Hybrid Stereo Tube Amplifier with Bluetooth USB Aux Phono in Sub Out 100W
  • Authentic vacuum tube warmth and character with class AB amplifier efficiency produces an articulate and natural sonic experience
  • Powerful 50 watts per channel of audiophile fidelity that is sure to please even the most discerning ear
  • Convenient input connections including USB, optical, coaxial, phono, stereo RCA, and Bluetooth V5
Vacuum Tube Amplifier Basics
  • Jurich, EJ (Author)
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BOYUURANGE Reisong A12 EL34 12AX7 (ECC83) Hi-Fi Audio Stereo Single-end Class - A Tube Amplifier Amp
  • Please pay attention before buying, We received feedback from many buyers, reflecting that Reisong A12 Amp have not enough power.Please confirm that your speaker is a bookshelf speakers with a sensitivity 89db or more. We don't think Reisong A12 work well with a floorstanding Speaker or the low sensitivity speakers.
  • Point to Point hand welding, preferred audiophiles, output transformer switch to the 76x40 higher end output transformer.
  • Reisong A12 Amp is an upgraded version of A10, could use more replacement models of tubes without convertor. Come with Tube Cage.
Willsenton R8 KT88/EL34 x4 Tube Integrated AMP Power Amplifier Headphone (Black)
  • One amplifier can used wiht tube EL34, KT88 or 6550, so, you can get 3 kinds of sound from different models tubes. The default matching tubes of this machine is KT88. If you need another 2 new sets of tubes, please purchase in addition. There is a Red selection button on the Back of the amp to switch.
  • Pure hand-made, Point to point manual welding.
  • Willsenton R8 is an integrated Amplifier, it is a Power Amplifier too (there is a group Power amp input), it is a Headphones amp too.

Last update on 2022-01-03 at 03:15 PST/ Affiliate links / Images from Amazon Product Advertising API

Learn About The Tube Amps And How They Work

Chances are you’ve just bought your first Electric guitar and wish to find out all about guitar amps. Maybe you’re just curious as to how long amps have been around, how they work, or which to purchase. Whatever the reason, by reading this article, you’ll get answers.

History of the Amplifier

Guitar amps have been around for roughly 70 years now, having first appeared during the 1930s. The earliest amps had very poor high treble and bass responses. This was improved over time, as amps became better developed. During the ‘60s, the guitar amp greatly evolved to where it is today when guitarists of that era experimented with deliberately overloading their amp to create Distortion. From that point on, most amps were provided with preamp distortion controls. Playing with distortion has since become an important part of Electric guitar playing

Types of Amplifiers

There are two types of amps: solid state and vacuum tube amps. Additionally, there are some amps that combine both solid state and tube technologies. Most amps, especially the least expensive ones, are solid state because they are lighter and easier to repair than tube amps are. A lot of guitarists, however, prefer the tube amp due to the tube amp’s analog sensitivity, which they claim makes tube amps sound better. While this is probably the case, most beginners can’t afford to shell out the $500-$1000 it costs to buy a good tube amp. That’s why solid state amps are actually a good buy in some cases.

Solid state and vacuum tube amps come in combo (speakers and head) packages or separately. Guitarists who aren’t picky can just buy the combo, while those who are picky can “mix and match” heads and speakers. This is useful for those looking to achieve a certain sound.

How Amps Work/What Watts Mean

Without going into a big, long, technical explanation, amplifiers basically take the vibration (sound) of the string(s) and amplify it, thereby increasing the sound. If you wish to find out more about the technical side of guitar amps, there are several good books that cover the topic pretty thoroughly.

Each amplifier has a certain number of watts. The higher the number of watts, the louder the sound produced by the amp is. Generally speaking, those who wish to play shows will want to get amplifiers with at least 30 watts, preferably at least 50 watts, especially if they plan on playing at larger venues.

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