Kato DC Power Pack

Several years ago I investigated several DC power packs, including one of my Kato packs (I have three of them). At the time I was reluctant to take one apart because the screws are hidden under the glued-on feet. But a question on the JNS Forum spurred me to investigate the circuitry more closely, and so I took one apart. And in the process, I discovered that some of my old information was wrong.