Labeled with matching measurements for plate current and transconductance
Optimal performance and long life
6-month replacement warranty
By matching these parameters, optimal performance and long life are ensured for your amplifier
Ruby Tubes come with a 6-month replacement warranty
A Santana favorite with full, clear tone. Comes with 6-month replacement warranty. 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.