Ruby 6L6GCMSTR Matched Amp Tubes Duet

All Ruby output tubes are labeled on the base with the exact matching measurements for plate current and transconductance. By matching these parameters, optimal performance and long life are ensured for your amplifier. Ruby Tubes come with a 6-month replacement warranty.

The Ruby 6L6GCSMTR power vacuum tube delivers the tone and performance you need Expertly manufactured, this highly sought-after tube offers unparalleled quality and tone for guitarists and bassists alike Experience full, balanced sound with good power and durability