What tubes does the Valco 1215 - Microphone use?

The Valco 1215 - Microphone uses 2× 12AX7 preamp tubes and 2× 6V6 power tubes.

When was the Valco 1215 - Microphone produced?

The Valco 1215 - Microphone was produced 1950–1955.

Valco 1215 - Microphone preset

Verified · 80/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Valco 1215 is an early 1950s amplifier from the Chicago manufacturer featuring microphone and instrument channels, documenting the company's product at a formative period in American amplifier history. The dual-input design made these amps practical for small venues where one amplifier might need to serve multiple purposes. Push-pull 6V6 output tubes deliver the warm, musical tone that defines early Valco sound.

Years produced: 1950–1955
Made in: USA
Wattage: 10W
Channels: 2
Preamp tubes: 2× 12AX7
Power tubes: 2× 6V6

Tags: american, vintage.

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.