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An adaptation of BOSS’s premium upgrade to the classic SD-1 circuit, featuring a high-quality buffer along with a new “Custom” mode that adds gain and shifts the midrange frequencies. Actual size is 2.3” x 2.43” (main board) and 2.3” x 0.91” (bypass board). STRATUS DELUXE OVERDRIVE...
9-10 Schematic INTRODUCTION The Stratus Deluxe Overdrive is loosely based on the BOSS SD-1W Waza Craft Super Overdrive, released in 2014 as an upgraded version of the classic SD-1. In addition to higher-fidelity buffers, it also includes a new “Custom” mode that adds gain and shift the EQ. The IC op-amps were also replaced with...
Input pull-down resistor. Can be as low as 1M. LEDR Metal film resistor, 1/4W LED current-limiting resistor. 2.2uF Film capacitor, 7.2 x 5mm 150pF MLCC capacitor, NP0/C0G Film capacitor, 7.2 x 2.5mm 1uF for Tube Screamer specs. STRATUS DELUXE OVERDRIVE...
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IC socket, DIP-8 DRIVE 16mm right-angle PCB mount pot 500kA or 500kB for Tube Screamer specs. TONE 20kW 16mm right-angle PCB mount pot VOL. 10kB 16mm right-angle PCB mount pot 100kA or 100kB for Tube Screamer specs. STRATUS DELUXE OVERDRIVE...
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Switchcraft 111X or equivalent. 1/4" mono 1/4" phone jack, closed frame Switchcraft 111X or equivalent. 2.1mm DC jack, 2.1mm panel mount Mouser 163-4302-E or equivalent. 3PDT Stomp switch, 3PDT 125B Enclosure, die-cast aluminum Can also use a Hammond 1590N1. STRATUS DELUXE OVERDRIVE...
Tube Screamer specs The Stratus Deluxe can be built to Tube Screamer specs with a few part substitutions. This will add the Waza buffer and the “Custom” mode to the base TS-9 if you prefer that circuit to the SD-1.
TYPE 1 TYPE 2 The Stratus Deluxe requires the Type 2 configuration, which is used by most major manufacturers such as Taiway. If you’re considering a different brand, make sure you know the configuration of the center position. Many of the off-brand on-on-on switches such as the ones sold by Tayda Electronics are Type 1 and will not work in this circuit.
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This capacitor cuts a significant amount of treble, and SD-1 users will commonly remove this capacitor (labeled C6 in the original SD-1, and C9 in the Stratus Deluxe) by desoldering it or just cutting it out. This opens up the top end significantly, at the expense of some of the characteristic midrange emphasis.
TO INPUT JACK TB/BUF FX GND TO OUTPUT JACK FROM EFFECT OUT 2N5088 BUFFER OUT 2N5457 IC1A NJM4558DD IC1B NJM4558DD 150pF FX GND 2.2uF 2N5088 MODE B TONE 20kW 47pF 2N5088 SW1A EFFECT OUT CLIP A DRIVE STRATUS DELUXE OVERDRIVE...
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TB/BUF FX GND TO OUTPUT JACK FROM EFFECT OUT 2N5088 BUFFER OUT 2N5457 IC1A NJM4558DD IC1B NJM4558DD 150pF FX GND 2N5088 MODE B TONE 220n 20kW 47pF 2N5088 SW1A EFFECT OUT (omit) 220n CLIP A DRIVE 500kB STRATUS DELUXE OVERDRIVE...
(In other words: you don’t have to go out of your way to advertise the fact that you use these PCBs, but please don’t go out of your way to hide it. The guitar effects industry needs more transparency, not less!) DOCUMENT REVISIONS 1.0.0 (2025-03-28) Initial release. STRATUS DELUXE OVERDRIVE...
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