What tubes does the Rickenbacker B9A use?

The Rickenbacker B9A uses 12AX7 preamp tubes and 6V6 power tubes.

When was the Rickenbacker B9A produced?

The Rickenbacker B9A was produced 1962–1967.

Rickenbacker B9A preset

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

The Rickenbacker B-9A is a small, single-ended tube bass combo from the early-to-mid 1960s, intended for practice and light studio use. Its modest all-tube circuit produces a warm, articulate bass tone with natural compression when pushed, making it pleasant for fingerstyle playing at low volumes. The single-channel layout with minimal controls keeps operation simple, and the compact cabinet houses a single 12-inch or 15-inch speaker depending on the configuration. The B-9A is a period curiosity representative of Rickenbacker's early commitment to offering matched amp-and-bass packages.

Years produced: 1962–1967
Made in: USA
Channels: 1
Preamp tubes: 12AX7
Power tubes: 6V6

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.