Silvertone 1306 - Microphone preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Silvertone 1306 is a Sears tube combo from around 1950 with a microphone input on its own volume and two instrument inputs on a second volume, both into a 6SL7GT. A 6SN7GT provides gain and a paraphase inverter for two cathode-biased 6V6GTs push-pull. A single tone control and a Normal/Hi-Fidelity switch shape the sound; a 5Y3GT rectifies. There is no tremolo.

• Made in: USA
• Channels: 2
• Preamp tubes: 1× 6SL7GT, 1× 6SN7GT
• Power tubes: 2× 6V6GT

Tags: american, vintage, 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.