Fender Harvard (Solid State) preset

Verified · 91/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The solid-state Harvard is an early-1980s 20-watt Fender practice combo that reuses the old valve Harvard name. Two inputs feed a single channel of three JFET gain stages with Treble, Bass, a Volume and a Master Volume, so it can be overdriven at low level. A discrete transistor power amp on the 20-watt amplifier board has a power-boost switch, and headphone and line-out jacks with a speaker on/off switch make it useful for quiet practice and recording.

• Wattage: 20W
• Channels: 1

Tags: solid-state, practice, low-wattage, 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.