電気のおもちゃ箱  http://etoysbox.jp

Has a lot of instruments in common with mine. The website also listed detailed pictures and associated manuals

Kerry Wong (http://www.kerrywong.com)

Does a lot of teardown and reviews. I know what you are thinking. Just like the Wong from Mars, no relation.

Keysight Labs Youtube Channel

Educational videos by younger Keysight employees that explains the very simple concepts of measurement sciences for beginners. The kind of stuff that if you’d figure if you play with electronics and test gears long enough. At least it’s much less boring than reading application notes! It also happens to be the stuff that most students typically miss in their university’s undergrad electronic lab sessions.