Apple Archeology: A "shed found" Apple II+ filled with cards

About this video

What is inside an Apple II+ that sat in a leaking shed for at least thirty years? Adrian Black opens it up, looks over the cards and tries to get it running.

Good to know: Mains voltage inside the power supply, and capacitors that stay charged after unplugging. Old filter capacitors can fail with smoke after years unused.

Why watch it

Manuals for a CCS 7710 serial card and an Apple II memory map are linked under the video, so owners with unidentified expansion cards have documentation to match against.