Randall RG50TC - Overdrive preset

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

The Randall RG50TC is a 50-watt, two-channel tube combo (2003). A Normal channel and an Overdrive channel with boost each have their own bass/middle/treble. Reverb, an effects loop and a headphone out complete the features. Three 12AX7s and a 12AT7 inverter drive a pair of EL34s.

• Made in: USA
• Wattage: 50W
• Channels: 2
• Preamp tubes: 3× 12AX7, 1× 12AT7
• Power tubes: 2× EL34

Tags: american, clean, high-gain, reverb, el34, mid-wattage, two-channel.

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.