What tubes does the Dynacord DA 15/IV - Instrument use?

The Dynacord DA 15/IV - Instrument uses 3× ECC83, 1× ECF80 preamp tubes and 2× EL84 power tubes.

When was the Dynacord DA 15/IV - Instrument produced?

The Dynacord DA 15/IV - Instrument was produced 1959.

Dynacord DA 15/IV - Instrument preset

Verified · 91/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The DA 15/IV is a 1959 revision of Dynacord's small DA 15 amplifier, with separate microphone and instrument (tape/pickup) inputs, tone controls and a built-in vibrato. Two ECC83s and a third ECC83 for the vibrato feed an ECF80 paraphase inverter driving a push-pull pair of EL84s on an EZ81 rectifier for about 15 W, giving a sweet, early-European EL84 voice.

Years produced: 1959
Made in: Germany
Wattage: 15W
Channels: 2
Preamp tubes: 3× ECC83, 1× ECF80
Power tubes: 2× EL84

Tags: german, vintage, el84, low-wattage, vibrato, two-channel, clean.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.