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6SN7 / 5692 / CV1988 / VT-231 / 6n9 / 6h9

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  • Brimar CV1988 / 6SN7GT
    $50.00 Brimar CV1988 / 6SN7GT
    Brimar 6SN7GT/CV1988 - Made in England. Smooth mids with a greater sense of depth, and slightly relaxed on top. Packed in NATO military boxes. As is typically the case with 6SN7 types from this era, these are not low in...
  • CBS Hytron 5692
    $140.00 Choose Options CBS Hytron 5692
    CBS-Hytron 5692 -  You may be familiar with the 5692 tube.  Known for their build quality to withstand mutliple g's and to win the cold war.  The engineer designing this tube was thinking about...
  • Early Russian 6H8C / 6SN7
    $30.00 Choose Options Early Russian 6H8C / 6SN7
    Russian 6H8C/6SN7 - 1960's vintage. These are sooooo cool. I got these from a guy who actually found them in a warehouse in Brazil... in the jungle. When I opened the musty boxes, I felt so much like Nikita Kruschev I...
  • Electro Harmonix 6SN7
    $20.00 Choose Options Electro Harmonix 6SN7
    Electro Harmonix 6SN7 - Current production tube made by New Sensor in Russia. Great tube. These tubes have been testing really low in noise and microphony, so if you have a preamp that is very sensitive, this may be the way...
  • Ken Rad VT-231 / 6SN7GT
    $50.00 Ken Rad VT-231 / 6SN7GT
    Ken-Rad 6SN7GT/VT231 - These were bought by the Royal Air Force in England, and are very sought after. Great tube that is very open and detailed. A very popular choice for SLI-80 owners. We're almost out... all that are...
  • Pope 6SN7GT
    Pope 6SN7GT
    This tube is now only available for purchase if being used in equipment you purchased new or demo from Upscale Audio. Call 909-931-9686 for more information. Pope 6SN7GT - Philips Holland. These are made in Holland, and...
  • Raytheon 6SN7WGT
    $60.00 Raytheon 6SN7WGT
    Raytheon 6SN7WGT - We're about the only place in the U.S. that has any of these left, and have been telling folks, especially BAT, Cary, and Atmasphere owners, just how good they are. They are 1950's vintage, and very...
  • RCA VT-231 / 6SN7GT
    $50.00 RCA VT-231 / 6SN7GT
    RCA VT-231 / 6SN7GT - I found a nice box of this very sought after 1940's vintage military stock tube on a recent tube hunting trip to Europe. Like many tube finds, these were left over in Europe after World War II. These...
  • Shuguang 6SN7GT
    $20.00 Choose Options Shuguang 6SN7GT
    Chinese 6SN7 - Excellent tube that sounds great and does not break the bank. Good choice if you have issues with noise or microphony as this tube is typically very quiet and will stay that way. Platinum grade - The best...
  • Sylvania VT-231 / 6SN7GT
    $50.00 Choose Options Sylvania VT-231 / 6SN7GT
    Sylvania VT-231 - Early production military stock with black bases, getter at the bottom... similar to the RCA VT-231. Very cool tube and super rare. Matched and fully screened. Most of the earlier 6SN7 tubes were...
  • Tung-Sol 6SN7GTB
    $20.00 Choose Options Tung-Sol 6SN7GTB
    Tung-sol 6SN7GTB re-issue, made by New Sensor in Russia.  New Sensor purchased the the Tung-Sol name and trademark, and have begun making new production tubes, using the Tung-Sol brand.  These tubes sound great,...