What tubes does the Rickstone Poweramp H40 use?

The Rickstone Poweramp H40 uses 1× ECC83 preamp tubes and 2× EL34 power tubes.

When was the Rickstone Poweramp H40 produced?

The Rickstone Poweramp H40 was produced 1960s.

Rickstone Poweramp H40 preset

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

The Rickstone Poweramp H40 is a 40-watt power amplifier and the highest-output model in the H-series lineup from this rare British manufacturer. The increased power output made it suitable for medium to larger venues in the 1960s UK touring circuit, while maintaining the fundamental British valve character shared across the Rickstone range. Its relative rarity compared to more common British amp brands makes documentation of its circuit particularly valuable.

Years produced: 1960s
Made in: UK
Wattage: 40W
Channels: 1
Preamp tubes: 1× ECC83
Power tubes: 2× 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.