Traynor Reverb Master YRM-1 preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The YRM-1 Reverb Master is a single-channel Traynor valve head from the early 1970s. Two inputs feed a 12AX7A stage, a treble/middle/bass stack, a volume with a treble boost switch and a second gain stage, then a master gain control. A 6BQ5 drives an Accutronics spring reverb with a 12AX7A recovery stage, level control and footswitch, and a 12AX7A photocell tremolo has speed, intensity and a footswitch. A 12AX7A long-tail inverter drives two fixed-bias 6CA7s.

Tags: canadian, vintage, el34, reverb, tremolo.

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.