Selmer Stadium - Channel 1 preset

Close · 72/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Selmer Stadium is a small two-channel valve combo. Each channel has a pentode input stage and its own volume, mixed into a triode stage with bass and treble controls. A pentode tremolo oscillator has depth and speed. In the power section an ECC83 gain stage and cathode-coupled inverter drive a cathode-biased push-pull pair of EL84s into 15 and 7 ohm taps, with negative feedback and an EZ81 rectifier.

• Made in: UK
• Wattage: 14W
• Channels: 2
• Power tubes: 2× EL84

Tags: british, vintage, el84, tremolo, low-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.