What tubes does the Traynor Bassmaster Yba5 use?

The Traynor Bassmaster Yba5 uses 2× 12AX7 preamp tubes and 4× EL34 power tubes.

When was the Traynor Bassmaster Yba5 produced?

The Traynor Bassmaster Yba5 was produced 1970–1976.

Traynor Bassmaster Yba5 preset

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

The Traynor Bass Master YBA-5 is a high-powered tube bass head from Yorkville Sound's Toronto factory, positioned at the top of the Bass Master line. Its four EL34 output tubes produced substantial clean headroom, and the simple, direct control layout — volume, bass, and treble — prioritized tone and reliability over complexity. The YBA-5 was aimed at professional bassists on the Canadian touring circuit who required a roadworthy amp capable of filling large rooms without the cost of a comparable British import.

Years produced: 1970–1976
Made in: Canada
Wattage: 100W
Channels: 1
Preamp tubes: 2× 12AX7
Power tubes: 4× EL34

Tags: british, 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.