Needed: Info or manual for Fisher 1800 Tube Receiver

I'm looking for a copy of owners manual or service manual and
schematic for a Fisher 1800 tube receiver. Also trying to figure out
why chasis has 220-240 Volts on it, as does 2 AC receptacles on back..
Was this a Fisher unit made for Europe? It has a standard type plug,
and it plays but I notice the output tubes get way too hot too fast..
Please email if you can help or have any docs you
could email or mail? Thanks!