Vox Night Train NT50H - Girth preset
Verified · 93/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.
The Night Train NT50H is a two-channel all-valve Vox head with a pair of fixed-bias EL34s in Class AB. Relay-switched Bright and Girth channels each have their own volume and Treble, Middle and Bass controls; Bright adds a Thick switch, Girth adds a Gain control. Three 12AX7s handle the preamp, with a Tone Cut, a Tight switch and an effects loop, and a fourth 12AX7 is the phase inverter, followed by a dual-gang master volume ahead of the EL34s.
- Years produced: 2011–2013
- Wattage: 50W
- Channels: 2
- Preamp tubes: 4× 12AX7
- Power tubes: 2× EL34
Tags: british, el34, crunch, mid-wattage, two-channel.
Schematic-derived preset files for 16 Fractal and Line 6 modelers: Axe-Fx II/XL/XL+, Axe-Fx III, FM3, FM9, and the full Helix family (Floor, LT, Rack, HX Stomp, HX Stomp XL, Native).
Gridleak extracts amp parameters from original circuit schematics using AI vision — component values, gain staging, tone stack topology, tube types — then generates native preset files for every supported modeler. Every extraction is scored 0–100 and the score is published.