What tubes does the Rickstone Preamp H40 use?

The Rickstone Preamp H40 uses 1× ECC83 preamp tubes.

When was the Rickstone Preamp H40 produced?

The Rickstone Preamp H40 was produced 1960s.

Rickstone Preamp H40 preset

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

The Rickstone Preamp H40 documents the preamplifier section for the H40, the most powerful model in the Rickstone H-series. The preamp circuit in the H40 may incorporate design differences compared to the 30-watt models to properly drive the higher-output power section. This schematic is an important preservation document for the rarest and most powerful Rickstone amplifier.

Years produced: 1960s
Made in: UK
Channels: 1
Preamp tubes: 1× ECC83

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.