To say the truth, I've never seen, or used a C64. Do own an old socket 7 486 Shannon Commercial PC though. Can't get it to post sadly. It seems to support SIMM's and early DIMM's too, the DIMM slots look like SDRAM, but it isn't, the clips are too low to properly seat SDRAM. I also have a working Atari XE system from the early 80's, and a working NES/SNES/N64. Got nothing for any of 'em though, few games for my N64, gun for the NES, and that's about it. I got the keyboard for the Atari XE though, the old joystick controller won't work though. Not sure why, I pulled it apart, checked it, looks fine, guess its just old.
Speaking of vacuum tube stuff, a friend of mine in Florida scored this 60 or 80W (can't remember which) tube based Audio Research amplifier/preamp from a friend of his. The amp was made in '79, and audio research still makes stuff using tubes to this day. Check there website, pretty cool equipment.
Oh, and there's a stereo that was bought in 1969 downstairs in the dining room. Old Delmonico stereo, grandma bought it new in '69 before moving to Florida, she gave it to her mother before moving, then got it back after her trip to Alaska shortly after they moved back here to Virginia. Anyway, the stereo is mint, turntable don't work, but the AM/FM tuner works, sounds pretty good. Its uh, 60W I think, don't think its ever been serviced. Its even still got the stringy thin cord with the non polarized plug. I'd like to get my hands on it to fix it, and I think I'd replace that cord 'cause I don't trust wiring that's nearly half a century old. I nearly had an old lamp electrocute me 'cause of an old frayed cord with rotted shielding. But that's another story, for another day.