Rob Robinette RR763 BlackVibe preset

Verified · 95/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The RR763 BlackVibe is Rob Robinette's single-channel take on the blackface AB763 Vibroverb, with no reverb or tremolo. Two 12AX7 stages with a bright switch feed a blackface tone stack, a 12AT7 long-tail-pair inverter and a pair of fixed-bias 6L6GCs on a GZ34 rectifier. It makes about 35 watts.

• Made in: USA
• Wattage: 35W
• Channels: 1
• Preamp tubes: 1× 12AX7, 1× 12AT7
• Power tubes: 2× 6L6GC

Tags: american, diy, clean, blackface, 6l6, mid-wattage.

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.