Ampeg T-12T - Channel 2 preset

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

The Ampeg T-12T is a solid-state guitar combo drawn in 1967. Each of its two channels is a plug-in three-stage transistor preamp module with its own volume, bass and treble, an Ultra High switch and an echo on/off switch. A reverb (echo) module with a Dimension control and footswitch, a tremolo/vibrato module with speed, intensity and a light-dependent resistor, and a transistor power output module with a centering trim complete it, with an electroluminescent front panel.

• Made in: USA
• Channels: 2

Tags: american, solid-state, vintage, reverb, tremolo, vibrato.

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.