What tubes does the Garnet G250Tr Sessionman use?

The Garnet G250Tr Sessionman uses 6CA4, 6CA4, 6CA4, 6CA4 power tubes.

When was the Garnet G250Tr Sessionman produced?

The Garnet G250Tr Sessionman was produced 1971–1977.

Garnet G250Tr Sessionman preset

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

The Garnet Sessionman G250TR is the standard tremolo/reverb guitar head version of the 250-watt Sessionman series, intended for high-volume stage use. Garnet's high-power tube circuitry delivered a characteristically warm Canadian tone — slightly looser in the low end than British equivalents, with a responsive midrange that cut through dense band mixes. The G250TR was a status amplifier for Canadian touring professionals.

Years produced: 1971–1977
Made in: Canada
Wattage: 250W
Channels: 2
Power tubes: 6CA4, 6CA4, 6CA4, 6CA4

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.