Magnatone 213 Troubadour - Channel 1 preset

Verified · 89/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Magnatone 213 Troubadour is a 1957 push-pull 6V6GT combo built around Magnatone's varistor pitch vibrato. Two channels, each with two inputs and its own Volume on a 12AX7 triode, share a Tone control and recovery stage. A 12AU7 and copper-oxide varistor bridge shift the pitch, driven by a 12AX7 oscillator with Speed and Depth and a cancel jack, ahead of a phase inverter and cathode-biased 6V6GTs on a 5V4.

• Years produced: 1957–1961
• Made in: USA
• Channels: 2
• Preamp tubes: 3× 12AX7, 1× 12AU7
• Power tubes: 2× 6V6GT

Known for: Scotty Moore.

Tags: american, vintage, vibrato, 6v6, two-channel.

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.