Pre-amp Tubes

All of the RUBY pre amplifier tubes are tested and selected for low microphonics and humm. This insures that even the highest gain tubes will be quiet and dependable.

RUBY TUBES WARRANTY

RUBY TUBES come with a 6-month warranty, one of the best in the industry. We are so careful about selecting and testing our tubes that we have no problem making this kind of an offer. If one of our premium RUBY TUBES fails during the 6-month warranty period, we will replace it at no charge. Ask your dealer!


12AX7A High Grade JJ
12AX7A High Grade JJ

$12.55
12AX7A High Grade Plus JJ
12AX7A High Grade Plus JJ

$15.55
12AT7Y
12AT7Y

$19.55

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