Detail 01
Nutube 6P1 fully analog triode
The overdrive circuit uses KORG’s Nutube 6P1 triode vacuum tube.

Independent shopping perspective
KORG’s OD-S is a build-it-yourself overdrive pedal kit that goes together without soldering. Its fully analog Nutube 6P1 triode circuit provides the pedal’s tube-based overdrive character, while separate GAIN and TUBE GAIN controls let you adjust the tube circuit in two ways. A two-position overdrive selector offers distinct Low–High ranges, and True Bypass suits a pedalboard used in live performance. The layout also invites deeper component-level modification.


Strong match
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
The overdrive circuit uses KORG’s Nutube 6P1 triode vacuum tube.
Detail 02
One control adjusts the tube input level; the other changes the tube amplification circuit’s anode load.
Detail 03
The selector provides two overdrive choices with different Low–High ranges.
Detail 04
Plan power around the pedal’s listed 46 mA draw.
Detail 05
These are the pedal’s listed dimensions for placing it in a setup.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
No. It is designed as a solderless, easy-to-build pedal kit.
Use a single 9V alkaline battery or a KA181 DC9V adapter. Both are sold separately.
Yes. Its layout supports changing discrete components, and circuit diagrams are available in the download section.
Yes, the OD-S includes True Bypass.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.