The Art of Electronics, on regulators. Chapter 5 probably made most of an impression on the late-teenage me, because it explains voltage regulation and power supplies both linear and switching.

Linear voltage regulators are key components in any power-management system that requires a stable and ripple-free power supply. A subset of linear voltage regulators is a class of circuits known as ...

[root42] is not only testing these, but the linked video also has him using the modules to repair a Commodore 1541 which originally had the linear TO3 voltage regulators. It’s definitely a non ...

In PRNet 2 (bottom of next figure), a switching regulator converts the power to a closer voltage, and linear regulators (iLR, nLR) regulate down to the final voltage. The nLR is a linear regulator ...