Ruby Tubes

Ruby Tubes


  • Ruby 6550A-STR

    Ruby 6550 STR
    $38.95

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

  • Ruby KT66

    Ruby KT66
    $35.95

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

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