Homework, for those following along, was to build a bridge rectifier and probe the signals from it. Let’s take a look. To the left is a schematic of a full-wave rectifier. Again, the important ...

The basic circuit is dead simple: a transformer, a full-wave rectifier, an LD1085 adjustable regulator — a low-dropout version of the venerable LM317 — and associated filter caps and trimmer ...