Guitar Amplifier Valves & Tubes

Replacement valves or tubes for guitar amplifiers. Groove Tube guitar amp valves are world famous for their valve tone, consistency and reliability. Groove Tubes replacement valves include EL84 valves, 6LC valves and many other guitar amplifier valves suitable for VOX valve amps, Marshall valve amps and almost any other guitar amplifier with valves.

Signs your Tubes need changing.
Amp lacks punch, Muddy Chords, Loss of highs or lows, Poor balance between notes, Amp sounds weak, Makes funny noises, Power fades in and out, Amp lacks sustain.