Rickenbacker M8E preset

verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Rickenbacker M8E is a simple single-ended Class A student amp. Two inputs mix through 68K resistors into a grid-leak-biased first stage of a 12AX7, then a 500K volume control and the second 12AX7 triode, which drives one cathode-biased 6V6 into the output transformer. There is no tone control and no negative feedback, and a 5Y3 rectifier with RC filtering supplies about 350 volts.

Tags: american, vintage, class-a, 6v6, low-wattage, practice.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.