327 / | HD | MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS |
365 | DF | GATING (I.E., SWITCHING INPUT TO OUTPUT) {12} |
493 | DF | .~ Utilizing two electrode solid-state device {5} |
504 | DF | .~.~ PN junction diode {1} |
505 | .~.~.~ Inverse parallel connection |