What tubes does the Traynor Bass Mate YBA-2B use?

The Traynor Bass Mate YBA-2B uses 2× 12AX7 preamp tubes and 2× 6V6GT power tubes.

When was the Traynor Bass Mate YBA-2B produced?

The Traynor Bass Mate YBA-2B was produced 1969–1980.

Traynor Bass Mate YBA-2B preset

Verified · 88/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The YBA-2B Bass Mate is a compact Traynor all-valve bass amp. Two inputs feed a 12AX7A gain stage, then passive bass and treble controls and a volume, and a second 12AX7A acting as phase inverter. Two 6V6GTs share a 250-ohm cathode resistor (cathode bias) with negative feedback from the 8-ohm output, on a silicon full-wave rectifier at about 400 V. The B version adds an extension-speaker jack; earlier YBA-2A Bass Mates used a pair of 6BQ5s.

Years produced: 1969–1980
Made in: Canada
Wattage: 25W
Channels: 1
Preamp tubes: 2× 12AX7
Power tubes: 2× 6V6GT

Tags: canadian, vintage, bass, el84, mid-wattage.

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.