The new Night Train is a 15-Watt, all-tube guitar amplifier head offering both classic and new VOX tones in a compact, portable, design.
A pair of EL84 tubes deliver 15 watts of power, as two 12AX7 tubes drive the harmonically rich preamp stage to deliver clarity and definition, from chime-like cleans to warm overdrives. A toggle switch lets users select between Pentode or Triode tube operation. In Pentode mode, Night Train delivers a full 15 Watts. In the Triode mode, the power is cut to 7.5 Watts. The Triode mode also relaxes the tube power stage, providing a smoother, mellower tube character.
Go to Vox Amplification here for more details. Credit: Vox Amplification.