Where can I find suitable replacement tubes for Vincent amplifiers from the Sintron SV series?

With Vincent, or the SV series distributed by Sintron, tube selection should always be based on the exact model, because the hybrid amplifiers use different tube stages depending on the version. Typical examples are the SV-200 with 2 x 6N1, the SV-237MKII with 2 x 6N1P NOS in the preamp stage, and the SV-700 with an elaborate tube preamp stage using 3 tubes per side. The SV-737 is also one of the important current SV models. Anyone who wants to preserve a Vincent amplifier or equip it correctly again therefore needs the right tube for the exact device. Many suitable types for Vincent SV amplifiers are available from BTB in carefully selected, tested or matched quality.