Carvin Valve Master (alternate scan) - CH2 preset

Close · 75/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Carvin Valve Master (PCB 77701G alternate scan) is an alternate schematic document for the vintage Valvemaster all-tube guitar amplifier from Carvin's direct-sales lineup.

• Years produced: 1970s–1980s
• Made in: USA
• Channels: 1
• Preamp tubes: 12AX7
• Power tubes: 6L6

Tags: american, clean, vintage.

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.