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 60's ODS Preamp 60's ODS Poweramp 60's ODS Output 70's ODS Preamp 70's ODS Overdrive 70's ODS Poweramp 70's ODS Output 97 ODS Full Schematic 97 ODS Notes  | 
      
 Dumble-ator ODS JFET Input 90's ODS Block Diagram Dumble Mod #1 Dumble Mod #2 Dumble Mod #3  | 
    
