What tubes does the Selmer Treblenbass use?

The Selmer Treblenbass uses 3× ECC83 preamp tubes and 2× EL34 power tubes.

When was the Selmer Treblenbass produced?

The Selmer Treblenbass was produced 1962–1969.

Selmer Treblenbass preset

Verified · 85/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Selmer Treble 'n' Bass was one of Selmer's most enduring and recognisable designs, a dual-voiced amplifier with separate treble and bass channels voiced for guitar and bass respectively. Its EL34 output stage and straightforward circuit layout produced a dependable, musical tone that made it widely used across the British beat scene. The concept of dedicated treble and bass voicings in a single chassis influenced later British amplifier designs.

Years produced: 1962–1969
Made in: UK
Channels: 2
Preamp tubes: 3× ECC83
Power tubes: 2× EL34

Tags: british.

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.