Be sure to add me to your favorites list Original Yamaha HX-1 Electone Organ Overall Circuit Diagram Foldout Sheet for the Analog and Digital Sections. This is an original Yamaha overall circuit diagram foldout for the large Yamaha HX-1 Electone organ. This one is for the analog and digital sections of this instrument. It's seen here, folded up. It's in very good condition, with only a tiny bit of storage wear, no writing, rips or tears on it. Made in Japan! This is a manual or document, this is NOT a piece of equipment or instrument. If you have any questions, I'm always happy to answer them. Thanks for looking, Check out my Store!