Samurai Boost – Keeley Katana Boost Clone


30DB Boost with a toggle for added grit…ding dong!

The Samurai Boost is our take on the Keeley Katana Boost Clone

A super small part clean boost with a toggle to add a little grit - the boost offers around 30db volume increase! The original used a push/pull switch but we've moved this to a toggle for ease for the diyer and it even fits in a 1590A/Gorva M45 if you're feeling it!

With an onboard voltage doubler upping the voltage to 18V internally but powered by a standard 9V negative center psu, giving you more clean headroom before any breakup - remember to use components rated to 25V minimum.


  • Volume
  • Boost (Toggle DPDT - ON/ON)

Note: Remember to socket any IC's and transistors!

Compares to: Keeley Katana Boost Clone

Additional information

General Build Guide Five Cats Pedals - General Build Guide V1.1
Compares to Keeley Katana
Build Docs Samurai Boost – V1.0 – Build Docs
Interactive B.O.M Samurai Boost – Interactive B.O.M (.zip download)
Schematic Samurai Boost - V1.0 - Schematic
Transistor Finder
Mega Packs from Five Cats Pedals