Kendrick Roughneck preset

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

The Kendrick Roughneck is a small single-ended amp from Gerald Weber's Texas company, Kendrick Amplifiers. Both halves of a 5751 drive a single cathode-biased 6L6, with a GZ34 rectifier, for about 6 watts; there are bright and mellow inputs and no tone controls. It gives a thick, raw, touch-sensitive breakup at recording-friendly volumes, and was also offered with 6V6GT or 6550 output and 5Y3GT rectifier options.

• Made in: USA
• Wattage: 6W
• Channels: 1
• Preamp tubes: 1× 5751
• Power tubes: 1× 6L6

Tags: american, boutique, 6l6, class-a, low-wattage, breakup.

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.