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Stratus (Legacy)

Based On
Ibanez® Tube Screamer
Effect Type
Build Difficulty
Project Summary
The quintessential mid-hump overdrive pedal made famous by Stevie Ray Vaughan, and the source circuit behind dozens of high-dollar boutique pedals.

Legacy PCB

Designed for the 1590B enclosure with side-mounted jacks, which some builders prefer. Bypass PCB (optional) sold separately.


In stock

Updated Version

The same circuit, but updated for the 125B enclosure format for a more streamlined build. The bypass switch PCB is integrated.


In stock

Project overview

Another classic that needs no introduction. But if you’ve ever wanted to mod the living daylights out of a Tube Screamer, this is a versatile PCB that fits in a 1590B.

There are two switches available: one for clipping diodes (with enough pads available for any diode combination you can dream of and “comp cut”/diode lift in the middle), and one that can be used for one of three other mods using jumpers:

  • Fat mod (with three different settings) – read more at AMZ
  • Brightness mod (also with three different settings)
  • “Flat Mids” mod (from the Fulltone® Fulldrive 2)

With the right combination of part values and mods, you can build exact replicas of dozens of Tube Screamer-derived circuits, such as the following:

  • Fulltone® Fulldrive 2 (single channel)
  • Fulltone® RTO
  • Lovepedal Eternity
  • Landgraff Dynamic Overdrive
  • Clay Jones Overdrive

Component lists are provided for a select few in the build document, but the Tube Screamer is a very inspirational circuit to say the least and there are many more out there.