Teisco Model 62 preset

verified · 82/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Teisco Model 62 is a tiny Japanese practice amp. Two inputs feed a 6AV6 triode stage, then tone and volume controls and a second 6AV6, driving a single 6AR5 pentode in single-ended class A with a 6X4 valve rectifier and no negative feedback. A later variant of the same circuit replaces the second 6AV6 and the 6AR5 with a single 6BM8 triode-pentode and uses a solid-state rectifier at about 250 V.

• Made in: Japan
• Channels: 1
• Preamp tubes: 2× 6AV6
• Power tubes: 1× 6AR5

Tags: japanese, vintage, class-a, low-wattage, practice.

Schematic-derived preset files for the Neural DSP Quad Cortex and 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.