Silvertone 1474 preset

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

The Silvertone 1474 (chassis 185.10410) is Sears' big two-channel reverb amp. Each channel has two inputs, its own half of a 12AX7, and its own Treble, Bass and Volume. A valve-driven spring reverb with Reverb, Balance and Threshold controls, a 6CG7 phase inverter, and four 6L6Gs push-pull split across two output transformers, each feeding its own 8-ohm speaker. A 6AU6 provides tremolo with Strength, Speed and a footswitch; a 5U4GB rectifies, and there is a standby switch.

Tags: american, vintage, 6l6, tremolo.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.