Selmer PA 100 SV preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The 'S.V.' version of Selmer's 100-watt valve PA head. Four ECC83 input preamps and an echo send and return feed an ECC83 long-tailed pair and four EL34s, with a standby switch and a diode rectifier. It is a big, clean British EL34 platform that also gets plugged into for guitar and bass.

• Made in: UK
• Wattage: 100W
• Channels: 1
• Preamp tubes: ECC83
• Power tubes: 4× EL34

Tags: british, vintage, el34, high-wattage, clean.

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.