| 324 / | HD | ELECTRICITY: MEASURING AND TESTING |
| 500 | DF | FAULT DETECTING IN ELECTRIC CIRCUITS AND OF ELECTRIC COMPONENTS {10} |
| 537 | DF | .~ Of individual circuit component or element {17} |
| 750 | ![]() | .~.~ System sensing fields adjacent device under test (DUT) {3} |
| 751 | DF | .~.~.~> Using electron beam probe |
| 752 | DF | .~.~.~> Using light probe |
| 753 | DF | .~.~.~> Using electro-optic device |