Selmer Selectortone Twin - Normal preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Selmer Twin Selector Tone is a two-channel valve amp built as a preamp and main amp. Channel 1 runs an ECC83 triode and EF86 pentode with volume and tone; channel 2 feeds the push-button Selectortone network and a second EF86 with its own volume. An ECC83/ECC82 drives a spring reverb with ECC83 recovery, plus tremolo with speed and depth. The main amp’s ECC82 inverter drives two KT88s (EL34 noted) from a GZ34 into 7.5 and 15 ohm taps.

• Made in: UK
• Channels: 2
• Preamp tubes: 5× ECC83, 2× EF86, 2× ECC82
• Power tubes: 2× KT88

Tags: british, vintage, reverb, tremolo, 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.