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Mullard ECC82 / 12AU7 Vintage New Old Stock

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Price:
$45.00

 



Product Description

Mullard 12AU7/ECC82 - early production old logo Mullard with the regular plate. 1960's vintage new old stock. Though they say they're made in Great Britain, this tube was actually manufactured in the Mullard factory in India. Still a fantastic tube and delivers that glorious midrange you'd expect from Mullard.

Platinum grade - The best of the best. Lowest noise and microphony with the tightest triode balance we have available. This is typically 10% or tighter, but may be higher depending on available stock.

Gold grade - Low noise and microphonics with a triode balance typically between 15% and 20%, but may be higher depending on available stock.

Driver grade - Lowest noise but not the lowest in microphony. Triode balance will be similar to Gold grade.
This grade is only suitable for use in the driver stage of an amplifier, or the output/buffer stage of a DAC or CD Player.

If you have a preamp or phonostage, you need at least Gold grade.

Click here for a more in depth discussion on how we grade tubes.

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Product Reviews

  1. Incredible tube

    Posted by John Valvano

    I put these in my Primaluna Prologue 1. It is amazing the improvement in detail and 3D presentation of the music. I sat there shaking my head listening to song after song in total amazement. The midrange is lush, warm and detailed. This has been an incredible and fun tube rolling experience.


  2. British Tube Bliss

    Posted by George O.

    This valve sounds amazing in my gear. I had not expected the 12au7 to make that much of a difference. I enjoy the new sounds immensely!


CRYOGENICALLY TREATED VACUUM TUBES. DONE TO UPSCALE AUDIO STANDARDS!


cryotubessmall.jpgMost of you already know that Upscale Audio is the premier destination for expertise and availability of vacuum tubes for high-end audio equipment. So when we offer servies and options, you can be guaranteed that it represents a significant investment of research and capital, and that the end result will greatly enhance your listening experience.

Upscale has contracted with the foremost company involved in this technology, 300 Below, to treat our most popular tubes.  Other tubes will be added as time allows, but it is a time consuming proccess.  Our intention is to have most stocks Cryogenically treated before we even test them.  

 

Of course, your first question is – and should be – why?  In a nutshell, reducing an object’s temperature to -300ºF re-arranges its molecular structure, creating greater uniformity that results in longer life and better performance than when the product was initially designed.With vacuum tubes, this process has a profound impact on a tube’s ability to endure thermal shock. Therefore, tubes can last longer and their sound can been enhanced in ways that are simply exquisite.

After thoughtful and thorough research, Upscale Audio chose 300 Below because of their extensive experience in working with musical instruments as well as auto racing, metal tooling, and high-end sporting goods from rifle barrels to golf clubs.  Expect nothing but the best from Upscale Audio.

Our charge for Cryogenically treating tubes is a fraction of what others charge, though we use the premier company.  Count on Upscale to do the best job and not price gouge .  Also available is cryogenic treatment for cables, along with our well-known Nordost Vidar cable treatment system.  Call for details. Pricing is listed on each tube and cable page. 


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