Ampeg Reverberocket R-12-R-T (7868) preset

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

The Ampeg Reverberocket R-12-R-T (7868 version) is a single-channel guitar combo with reverb and tremolo. 6BK11 and 6U10 compactrons plus 12AX7s handle the preamp, tremolo and echo circuit with Dimension control, driving a pair of 7868s off a solid-state rectifier into a 12-inch speaker.

• Made in: USA
• Wattage: 18W
• Channels: 1
• Preamp tubes: 1× 6BK11, 1× 6U10, 2× 12AX7
• Power tubes: 2× 7868

Tags: american, vintage, reverb, tremolo, 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.