What tubes does the Yorkville Sound YBA-3 use?

The Yorkville Sound YBA-3 uses 3× 12AX7 preamp tubes and 2× EL34 power tubes.

When was the Yorkville Sound YBA-3 produced?

The Yorkville Sound YBA-3 was produced 1967–1975.

Yorkville Sound YBA-3 preset

Close · 75/100 confidence. Most values readable. Minor gaps filled by inference from similar circuits.

The Yorkville YBA-3 was an early Canadian tube amplifier produced by Yorkville Sound (then Traynor) offering British-influenced EL34 tone at an accessible price. It became popular with Canadian and American players who wanted Marshall-style power without the import premium.

Years produced: 1967–1975
Made in: Canada
Wattage: 50W
Channels: 2
Preamp tubes: 3× 12AX7
Power tubes: 2× EL34

Tags: british, vintage, crunch.

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.