TONEHOME - the World of Vintage Guitar Effect Pedals
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MXR Distortion+ (MX-104)

made in Rochester/NY, 1980

MXR Distortion +, non-LED version 1980

The MXR Distortion+ was originally designed in the early 1970s by MXR Innovations. Despite its name it has a rather mild, more overdriven sound and in fact a similar circuit as many overdrive pedals (e.g. DOD 250). The pedal uses a single op-amp and a set of two germanium diodes for clipping rather than discrete transistors. It sports just two controls for output and distortion, there is no tone control. This pedal gave Randy Rhoads his signature sound in his work with Ozzy Osbourne.


list price 1982 (Germany): 170 DM

MXR Distortion+ manual (1980)
PDF-Dokument [1.7 MB]

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02/25/2017: ToneHome is looking for an Ibanez CS-505 narrow box first issue with flying fingers side graphic. Any hint is highly appreciated. Other than that we're looking for boxed effects or just boxes for Ibanez narrow box GE-601, AD-80, CP-835, OD-850. Please submit your offers or leads here: e-mail

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