Fender Harvard 5F10 Restoration preset

Close · 75/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Harvard 5F10 is a narrow-panel tweed student amp delivering 10 watts through two 6V6 output tubes into a single 10-inch speaker. Its warm, simple circuit makes it a practical starting point for learning tube amp repair and restoration.

• Years produced: 1956–1961
• Made in: USA
• Wattage: 10W
• Channels: 2
• Preamp tubes: 2× 12AX7
• Power tubes: 2× 6V6

Tags: american, tweed, vintage, clean.

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.