Gibson GSS-50 - Tremolo/Reverb preset

Verified · 84/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The GSS-50 is a 1966 Gibson solid-state amp rated at 50 watts into 4 ohms. Two channels each have their own volume, treble and mid controls; the Tremolo/Reverb channel adds a transistor-driven spring reverb with on/off switch and a transistor tremolo with depth and frequency, while the Normal channel has no effects. Both feed transistor drivers and a driver transformer into 2N3055 output pairs on a dual-rail diode supply, with an aux jack.

• Years produced: 1966
• Made in: USA
• Wattage: 50W
• Channels: 2

Tags: american, vintage, solid-state, 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.