Fender 75 - Lead preset

Verified · 89/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Fender Seventy Five is an early-1980s 75-watt tube amp with reverb. One preamp has volume, treble, bass and middle with treble, bass and mid boost switches and a bright switch, and a footswitchable lead circuit adds a 7025 gain stage with its own lead drive and lead master alongside the normal master. A 12AT7 drives the spring reverb, an effects loop sits before the master, and a 12AT7 long-tail inverter drives a fixed-bias pair of 6L6GCs on a silicon bridge supply, with a high/low power switch.

Tags: american, two-channel, reverb, 6l6, crunch, high-wattage.

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.