Ruby Tubes

Ruby Tubes

  • Ruby 12AX7ACZ HG

    Ruby 12AX7 ACZ High Grade
    Highest gain 12AX7, great for metal and hard rock. Selected high grade JJ ECC83.
  • Ruby 5AR4C

    Ruby 5AR4C
    Ruby 5AR4C
  • Ruby 6550A-STR

    Ruby 6550 STR

    Ruby 6550A-STR is a Chinese Shuguang(Sino equivalent) - selected by RUBY.

  • Ruby KT66

    Ruby KT66

    Great cleans, with a nice grind. This Ruby tube is a re-labeled Chinese Shuguang tube

  • Ruby KT88-STR

    Ruby KT88 STR

    Select 3-hole plate KT88 made by Shuguang in China. Also re-marketed as Valve Art.

  • Ruby KT88V-STR

    Ruby KT88V-STR
    Ruby KT88V-STR. Solid plate, triple getter.

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