Langevin AM-16 Microphone Preamp Manual Page 1 PDF Manual Page 2 PDF Manual Page 3 PDF Manual Page 4 PDF Schematic Close-UP PDF Schematic JPEG Below are some photos I "stole" from eBay auctions.
Manual Page 1 PDF Manual Page 2 PDF Manual Page 3 PDF Manual Page 4 PDF Schematic Close-UP PDF Schematic JPEG