What tubes does the Garnet PA260 BTO use?

The Garnet PA260 BTO uses 5× 12AX7, 1× 6SN7 preamp tubes and 4× 6CA7 power tubes.

When was the Garnet PA260 BTO produced?

The Garnet PA260 BTO was produced 1967–1972.

Garnet PA260 BTO preset

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

The Garnet PA260 BTO is a valve PA head from Winnipeg's Garnet Amplifier Company, the PA member of its BTO (Big Time Operator) series. Four identical mixer channels, each with two inputs, a 12AX7 and its own volume, feed a shared treble and bass tone circuit and a 12AX7 recovery stage with a signal-out jack. A 6SN7 driver is transformer-coupled to four fixed-bias 6CA7s at about 505 V.

Years produced: 1967–1972
Made in: Canada
Channels: 1
Preamp tubes: 5× 12AX7, 1× 6SN7
Power tubes: 4× 6CA7

Tags: canadian, vintage, el34, clean.

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.