Groove Tubes GT-6L6-GE Medium Power Tube for Professional Amplifiers, Matched Pair(2)

Groove Tubes GT-6L6-R Medium Power Tube for Professional Amplifiers, Matched Pair(2)

Groove Tubes GT-6L6-CHP Medium Power Tube for Professional Amplifiers, Matched Pair(2)

Groove Tubes GT-EL34-M Medium Power Amplifier Tube, Matched Pair (2)

Groove Tubes GT-E34LS Medium Power Amplifier Tube, Matched Pair (2)

Groove Tubes GT-6550-C Medium Power Amplifier Tube, Matched Pair(2)

Groove Tubes GT-6V6-S Medium Power Amplifier Tube, Matched Pair (2)

Groove Tubes GT-6L6-S Medium Power Tube for Professional Amplifiers, Matched Quartet (4)

Groove Tubes GT-6L6-R Medium Power Tube for Professional Amplifiers, Matched Quartet (4)

Groove Tubes GT-EL84-S Medium Power Amplifier Tube, Matched Pair (2)

Groove Tubes GT-6550-R Medium Power Amplifier Tube, Matched Pair(2)

Groove Tubes GT-EL84-R Medium Power Amplifier Tube, Matched Pair (2)

Groove Tubes GT-EL34-R Medium Power Amplifier Tube, Matched Pair (2)

Fender Groove Tubes GT EL84 Tube for Medium-Power Amplifiers, 2-Pack

Groove Tubes GT-6L6-CHP Medium Power Amplifier Tube, Matched Sextet (6)

Groove Tubes GT-6V6-S Medium Power Amplifier Tube, Matched Quartet (4)

Groove Tubes GT-E34LS Medium Power Amplifier Tube, Matched Quartet (4)

Fender Groove Tubes GT EL34 Tube for Medium-Power Amplifiers, 4-Pack

Fender Groove Tubes GT EL84 Tube for Medium-Power Amplifiers, 4-Pack

Groove Tubes GT-6V6-C Medium Power Amplifier Tube, Matched Quartet (4)

Groove Tubes GT-EL84-S Medium Power Amplifier Tube, Matched Quartet (4)

Groove Tubes GT-EL34-R Medium Power Amplifier Tube, Matched Quartet (4)

Groove Tubes GT-EL84-R Medium Power Amplifier Tube, Matched Quartet (4)

Groove Tubes GT-EL34-M Medium Power Amplifier Tube, Matched Quartet (4)

Groove Tubes GT-5U4 Rectifier/Specialty Tube for Medium-Power Fender Amplifiers

Groove Tubes GT-5Y3 Rectifier/Specialty Tube for Low-power Fender Amplifiers

Groove Tubes GT-12AT7 Durable Phase Splitter/Driver Tube for Preamplifier

Groove Tubes GT-12AY7 Preamplifier Tube

Groove Tubes GT-5AR4 Rectifier/Specialty Tube for Higher-Powered Amplifier

Bugera Matched Power Pentode Tube for Guitar Amplifiers, Pack of 4

Bugera EL84-4 Matched and Hand Selected Power Pentodes, 4 Pieces per Pack