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1590B · 2 knobs

Effects Layouts (blog)

Maxon OD880 Soft Distortion OverdriveVerified

Based on the Maxon OD-880· 5 other boards clone it

Category
Overdrive
Controls
Sensitivity · Level
Layout
Verified · Effects Layouts (blog) marks it as built and working
Tags
Maxon, Overdrive

From the post

The Maxon Company is probably most famous for manufacturing the legendary Ibanez Tube Screamer pedals (among many other Ibanez offerings). Because of this (and especially in non-Asian markets) Maxon pedals were often overshadowed by their Ibanez-branded brothers. But throughout the company's history, they have produced a great offering of effects.

The Maxon OD880 Soft Distortion Overdrive was first produced in the mid 70s, and originals are very rare, especially in the West. It used 3 ICs (741 types) to produce a great transparent overdrive effect. The pedal was reissued in the 90s exclusively in Japan with an updated circuit that used 2 opamps. The layout below is for the original 3 IC version. I've added power filtering and polarity protection. It should fit just fine in a 1590B.

Schematic

This is a board layout, a drawing of where each part goes, and the post may link the schematic it was drawn from. Open the layout at Effects Layouts (blog). No KiCad fragment has been drawn for this circuit yet.

Parts list 18 rows

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Check before you build · 1 value the reader of this layout was not sure of
  • 9.1K horizontal resistor between the two left LM741s: printed clearly, unusual value
RefValueNormalizedTypeNotes
Resistors 8
×710K10kread from the layout by eye
×2100K100kread from the layout by eye
×2470K470kread from the layout by eye
×11M1Mread from the layout by eye
×14.7K4.7kread from the layout by eye
×168K68kread from the layout by eye
×19.1K9.1kread from the layout by eye
×1100Ω100read from the layout by eye
Capacitors 5
×347nF47nread from the layout by eye
×3100nF100nread from the layout by eye
×14.7nF4.7nread from the layout by eye
×147uF47uelectrolytic; read from the layout by eye
×110uF10uelectrolytic; read from the layout by eye
Diodes 2
×11N40011N4001read from the layout by eye
×21N41481N4148read from the layout by eye
ICs 1
×3LM741LM741read from the layout by eye
Potentiometers 2
SensitivityB500KB500kPotentiometerread from the layout by eye
LevelB10KB10kPotentiometerread from the layout by eye

Other boards based on the Maxon OD-880