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Ruby 6L6GCMSTR Power Vacuum Tube Finally Back In Stock!
Expertly manufactured, our long-awaited Ruby 6L6GCMSTR Power Vacuum Tube is finally back in stock after the factory closure. With a 2024 production date, this highly sought-after tube offers unparalleled quality and performance for all your audio needs. Upgrade your sound today with
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I’ve been using Ruby tubes for over 25 years. The products are excellent. They’re six month warranty is the best in the biz. I appreciate everyone that works there and how hard they work to try to keep prices down and the product level high. Here is a picture of some scones I made.
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Terence · October 4, 2026
The 6L6GC's that I recently purchased from Ruby Tubes is a prominent feature in the attached photo. 15 comfortable watts!
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JACK · October 8, 2026
A nice robust good sounding duet of 6L6GC power tubes. I use these in my Fender amps. Plus I keep a few spares around.