Over the past 30 years, I've been saving parts from units that could not be rescued, both stereo and quadraphonic equipment, mainly things that are most likely to get lost or damaged. Mostly external items, like knobs, feet, antenna bars, glass panels, etc., but also some internal pieces, like decoders and potentiometers, things like that. Rather than catalog everything, I'd rather respond to want lists. Most parts will be $5 - $10, a full set of knobs, for example, would be $20. You pay shipping. I don't go to my storage every day, so give me a few days to respond.