I've carefully removed all components from the second unit. They're all sitting in a dry storage room in the basement. The chassis, now empty, is being used as a temporary desk for our 16-year-old son. I told him I'll probably be putting it back together in about a year or so, so he has to take care of the wood.

In the meantime, I'm going to practice on these components, as I get up to speed on electronics troubleshooting. It's really handy to have another working set to compare against, so as to minimize any bad wiring or mistakes.