What tubes does the Vox Pacemaker use?

The Vox Pacemaker uses 2× EL84 power tubes.

When was the Vox Pacemaker produced?

The Vox Pacemaker was produced 1965–1966.

Vox Pacemaker preset

Verified · 91/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Pacemaker V-2 was the first Thomas Organ-built Vox valve combo, made in California under licence from JMI. Three inputs feed a triode stage, a Treble and Bass stack, Volume and a second triode ahead of a cathodyne phase inverter. Two cathode-biased EL84s give about 17 watts into a 10-inch speaker, with a triode tremolo (Speed, Depth, footswitch), an EZ81 (6CA4) rectifier and standby.

Years produced: 1965–1966
Made in: USA
Channels: 1
Power tubes: 2× EL84

Tags: vintage, el84, tremolo, low-wattage.

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.