MXR MX-106 Block Noise Gate Line Driver 1975-1984 for parts or repair. I bought this pedal in the early 1980s and it worked at the time but it has been in clean dry storage but she no worky. There is some discoloration on the power plug, but the rest that looks like corrosion is more like the glue from all of the foam that was in there. And there may be some corrosion. I didn't want to scrape it down. As-is no returns.