(18 customer reviews)

Mesa 6L6GC ST STR 420

This product is currently out of stock and unavailable.

Description

This is the Coke Bottle (ST) style Mesa 6L6GC ST STR420. Beam tetrode power tube known for its sweet, warm tone. Valve number equivalents include 6L6, 5881, 6L6G, 6L6GA, 6L6GB. Brand new vacuum tubes from old stock. No longer sold new. Restore the sound of your older Mesa Boogie with these original NOS tubes. Tested and matched on a RoeTest professional computer testing system, the best tester available today. Also matched on a Maxi-Matcher 2.
CALIFORNIA PROPOSITION 65 WARNING
WARNING: Cancer and Reproductive Harm-www.P65Warnings.ca.gov.

Additional information

Weight 3 oz
Dimensions 3.75 × 2 × 2 in
Single Tube or Matched Set >

Matched Pair, Matched Quad, Single Tube

18 reviews for Mesa 6L6GC ST STR420

  1. Michael F. (verified owner)

    Excellent recommendation unbelievable service.

  2. Don Floyd (verified owner)

    It was a pleasure working with Craig. I restore vintage guitar amps and I had the need for a quad set of closely matched tubes which he worked with me to create. He did such a good job, I purchased another quad set to match the first. The price and quality were way better than I could have hoped for. I will definitely be placing my future tube orders with Craig at Nesstone.

  3. Paul M. (verified owner)

    I’m very happy w/the matched 6L6 tubes. Fast shipping, great prices!

  4. Charlie D. (verified owner)

    Excellent tubes
    Great price
    Very fast shipping
    Did not have Mesa or 6L6 GC written on tubes though

  5. Joshua Ortiz

    Was hunting down a set of coke bottle MESA 6L6 GC STR 420’s. Hard to find. Nesstone definitely has a great collection of NOS and more. Cant beat the price. Tubes shipped fast and are now in service. Great resource! Thank you

    Image #1 from Joshua Ortiz
  6. Adolfo Brusse (verified owner)

  7. Anonymous (verified owner)

    They are great!

  8. Jonathan F. (verified owner)

    Very happy. Amp sounds great. Highly recommended!

  9. Anonymous (verified owner)

  10. Mathieu (verified owner)

  11. Anonymous (verified owner)

    The Mesa STR420 6L6 (coke bottle) tubes were perfect for my 2-Channel Mesa Boogie Dual Rectifier Trem-o-verb! It sounds great with these new tubes. The tubes are a direct replacement for my amp. I loved the tubes so much, I ordered a second set! This was so in 20 years I will be prepared in advance, with confidence, that my tubes will be appropriately matched for my amp! Remember, these tubes are new old stock (NOS). The tubes will come in NessTone branded boxes. The team at NessTone does an excellent job with quality control to ensure the tubes purchased are matched and in proper working order! If you have a self-biasing Mesa Boogie amp or any tube amp you can buy with confidence!

  12. Anonymous (verified owner)

    Worked great in my amp!

  13. Anonymous (verified owner)

    Awesome!!

  14. Tyler P. (verified owner)

    They work and sound beautiful.

  15. David C. (verified owner)

    Thrilled to find these NOS at a great price!

  16. Dennis (verified owner)

    Sweet matchup with 90’s Boogie amp that originated with same valve. I think there is something to that, because the amp sings best with these, and I’ve rotated many

  17. Joshua Ortiz (verified owner)

    Fast delivery and in NOS condition as advertised . Labels are intact and not damaged . Tubes function as expected . Thank you !

  18. Matt (verified owner)

    Nice older power tubes.

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