What tubes does the Traynor Traynor Bassmaster Yba4 use?

The Traynor Traynor Bassmaster Yba4 uses 2× 12AX7 preamp tubes and 2× 6CA4 power tubes.

When was the Traynor Traynor Bassmaster Yba4 produced?

The Traynor Traynor Bassmaster Yba4 was produced 1966–1974.

Traynor Traynor Bassmaster Yba4 preset

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

The Traynor YBA-4 Bassmaster is a beefier version of the YBA-1, offering more power and headroom while retaining the mid-forward, slightly gritty character that defined the early Traynor sound. It was widely used across Canada in the late 1960s and early 1970s as an affordable alternative to imported British heads.

Years produced: 1966–1974
Made in: Canada
Wattage: 45W
Channels: 2
Preamp tubes: 2× 12AX7
Power tubes: 2× 6CA4

Tags: 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.