Airline 62-8500S - Tremolo preset

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

The Airline 62-8500S is a Montgomery Ward tube combo with two 12-inch speakers. It has two input pairs: the first channel is a single 12AX7 stage with its own Volume, the second runs two stages with its own Volume and a Tone control, and a 12AX7 tremolo with Speed, Intensity and footswitch works on that second channel. A 12AX7 paraphase inverter drives two cathode-biased 6L6s with no negative feedback, off a 5U4G rectifier.

• Made in: USA
• Wattage: 30W
• Channels: 2
• Preamp tubes: 3× 12AX7
• Power tubes: 2× 6L6

Tags: american, vintage, 6l6, tremolo, mid-wattage, 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.