Selmer TV20 - Channel 1 preset

Verified · 87/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Selmer TV20 is a valve combo from Selmer’s Truvoice (TV) range with two channels. Channel 1 and channel 2 each have two inputs into their own EF86 pentode stage and their own volume control, then they mix into a 12AX7 triode with bass and treble controls. The other 12AX7 triode is a split-load phase inverter driving a cathode-biased push-pull pair of 6V6s from a 5Y3 rectifier. A third EF86 runs the tremolo, with Depth and Speed controls.

Tags: british, vintage, mid-wattage, 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.