What tubes does the Magnatone MP-1 - Instrument use?

The Magnatone MP-1 - Instrument uses 2× 12AX7/7025, 2× 12AU7A preamp tubes and 2× 7189A power tubes.

When was the Magnatone MP-1 - Instrument produced?

The Magnatone MP-1 - Instrument was produced 1965–1967.

Magnatone MP-1 - Instrument preset

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

A Magnatone combo from the Estey era with an instrument channel (high and low gain inputs) and a separate mic input with its own volume and tone. It has tube-driven spring reverb and an optical (lamp and LDR) tremolo, with two 7189As in push-pull into a 12-inch speaker. It is a late-1960s Magnatone that uses tremolo instead of the brand's earlier pitch vibrato.

Years produced: 1965–1967
Made in: USA
Channels: 2
Preamp tubes: 2× 12AX7/7025, 2× 12AU7A
Power tubes: 2× 7189A

Tags: american, vintage, reverb, 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.