Riverstone Audio – 6P1P-EB Tested AND Matched Pair (2 tubes) – Vintage Russian Vacuum Tubes – Amplitrex Tested – Replacement for 9-PIN 6P1 / 6P1P Tubes – Platinum Grade Pair – (2 tubes) 6P1P-EB

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Riverstone Audio – 6P1P-EB Tested AND Matched Pair (2 tubes) – Vintage Russian Vacuum Tubes – Amplitrex Tested – Replacement for 9-PIN 6P1 / 6P1P Tubes – Platinum Grade Pair – (2 tubes) 6P1P-EB


  • MATCHED PAIR 6P1P-EB NOS Vacuum Tubes. – UPGRADE FOR CHINESE 6P1 VACUUM TUBES. The 6P1P-EB vacuum tube is a vintage Soviet-made miniature 9-pin beam-tetrode that was manufactured by Svetlana. The “-EB” designation at the end of the 6P1P tube code designates a long-life (E) and high-reliability (B) version of the 6P1P tube. *****The tubes are marked (see photos) in Russian cyrillic 6П1П-EB (in English – 6P1P-EB). THESE ARE NOT 6N1P dual-triode tubes*****
  • **IMPORTANT** AMPLIFIER DAMAGE CAN OCCUR IF YOU SUBSTITUTE THE WRONG TYPE OF TUBE** 6P1P-EB tubes can only be used as a direct replacement for 9-PIN Chinese 6P1 and Russian 6P1P tubes. Carefully determine the type of tube used in your amplifier before ordering.
  • 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, 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 50% of the 6P1P-EB-tubes we test and audition pass our standard for high fidelity audio use and are used in our Platinum Grade sets.
  • TEST RESULTS CLEARLY MARKED on the tube boxes with data for both ip and Gm attached to the individual tube boxes. The tubes chosen for these matched pairs have close electrical parameter matching (ip and Gm are within 5% tubes). Individual matched pairs will have identical date codes.
  • BUY WITH CONFIDENCE – Our Platinum Grade 6P1P-EB vacuum tubes are backed by Riverstone Audio’s no-nonsense 2-year warranty – THE BEST WARRANTY AVAILABLE in the audio tube business. We also guarantee that the tubes selected for our Platinum Grade matched pairs test will test at NOS levels when received. To protect the tubes during shipping and storage, the 6P1P-EB tubes are supplied in Riverstone Audio’s custom “Tube Cradle” boxes.


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Bluetooth Tube Amplifier Stereo Receiver - 600W Home Audio Desktop Stereo Vacuum Tube Power Amplifier Receiver w/ 2 Vacuum Tubes, AUX/MP3/Microphone Inputs, Pure Copper Speaker Output - Pyle PVTA20
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Dayton Audio HTA100BT Hybrid Stereo Tube Amplifier with Bluetooth USB Aux Phono in Sub Out 100W
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Rockville BluTube 70W Tube Amplifier/Home Theater Stereo Receiver with Bluetooth
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  • Built in Bluetooth with 33 foot range. Built-in preamplifier. (2) sets of RCA inputs to connect to any audio device like a TV, laptop, or MP3 player, etc.
Audiophile Vacuum Tube Amplifiers - Design, Construction, Testing, Repairing & Upgrading, Volume 1
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Last update on 2021-05-07 at 21:20 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.