327 / | HD | MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS |
100 | DF | SIGNAL CONVERTING, SHAPING, OR GENERATING {29} |
185 | DF | .~ Particular stable state circuit (e.g., tristable, etc.) {12} |
197 | .~.~ Convertible circuit (e.g., bistable to monostable, D-type to T-type, etc.) |