The MXR 01A also known as the Model 191, was manufactured by ART (applied Research & Technology) and was a very expensive reverb at the time, selling for more than a Lexicon PCM 60.
Lexicon Model 1300 Service Manuals + Schematics documents in scanned PDF format. (22 PDF files in total)
Full inclusion list:
After purchase you will be presented with a link to download all 8 of these documents.
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