Gibson Clavioline Stereo Amp preset

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

A stereo tube amplifier Gibson built for the Clavioline electronic keyboard. Two identical sides each run a 12AX7 preamp into a push-pull pair of 6BQ5 (EL84) output tubes, with a third 12AX7 and a GZ34 rectifier shared across the chassis. It is a different unit from Gibson's mono 6V6 Clavioline amplifier.

• Made in: USA
• Wattage: 20W
• Channels: 1
• Preamp tubes: 3× 12AX7
• Power tubes: 4× 6BQ5

Tags: american, vintage, el84, stereo, mid-wattage.

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.