Gibson Clavioline preset

Verified · 84/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

This is the amplifier Gibson supplied for the Clavioline, a French-designed electronic keyboard licensed under Constant Martin's patent. It is a simple mono chassis with no volume or tone controls of its own: a 6J5 triode stage drives two 6V6G/GT output valves wired in parallel single-ended, each cathode-biased, into one output transformer. A 5V3G/GT rectifier with a filter choke and an OA2 regulator also supply the keyboard unit through an octal socket.

• Made in: USA
• Channels: 1
• Preamp tubes: 1× 6J5
• Power tubes: 2× 6V6GT

Tags: american, vintage, 6v6, clean.

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.