Multivox Guitar Amp with Tremolo (1967) preset

Verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

This 1967 Multivox guitar amplifier is a small single-ended valve combo with built-in tremolo. A microphone input and two instrument inputs mix into one half of a 12AX7, then a Volume, the second 12AX7 stage and a Tone control drive a single cathode-biased 7591 into a 12-inch speaker. A 6AV6 oscillator works the tremolo, with a speed control and footswitch jack, from a two-diode supply. Multivox was a New York maker and importer of amplifiers.

• Made in: USA
• Wattage: 10W
• Channels: 1
• Preamp tubes: 1× 12AX7, 1× 6AV6
• Power tubes: 1× 7591

Tags: american, vintage, tremolo.

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.