Originally Posted by
bigbossman
Pioneer's SX-1000 series ran from 1973 to 1979, so if it is a SX-1010 it is definitely 70's unit. I believe the "silver-on-silver" (or Silver Series) started in the latter half of that decade, so if it has a blacked out face it is probably earlier rather than later 70's. Also, it is a 110W/ch receiver and one of the 1st of the Big Boys that started the amplifier "power wars" of that time. These receivers are very well regarded.
Your brother left you something very special. If it has been sitting dark and you get the urge to just turn it on..... don't. Take it to a good stereo repair place to have them bring it up properly and give it a thorough inspection.
Does it look like this?:

I was in an audio repair shop here in SD a few years ago and he had a beast of a Pioneer receiver in for service that was rated at 250 watts per channel! The amp had heat sinks protruding from the cabinet. That thing had to be worth some coin, and was likely a not so secret weapon in the receiver wars of the 70's. IMO it was overkill, but even so it was tres cool.