Gibson Hawk (1968) preset

Verified · 90/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

This Hawk is the restyled 1968 model from Gibson's late-1967 amp revamp, not the earlier GA-25RVT Hawk. It is a 12-watt, five-tube 1x10 combo: two inputs into a 12AX7 with tone and volume, a 12AX7 reverb driver and recovery, and a 12AX7 tremolo oscillator, each effect with its own footswitch. Half a 12AX7 splits phase for two cathode-biased 6BQ5s on a silicon rectifier.

• Introduced: 1968
• Made in: USA
• Wattage: 12W
• Channels: 1
• Preamp tubes: 3× 12AX7
• Power tubes: 2× 6BQ5

Tags: american, vintage, clean, reverb, tremolo, el84.

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.