Gently Used! From Non-smoking home. Additional Details ------------------------------ Product description: Each via on your pcb exhibits both capacitive and inductive effects. This session focuses on the inductive properties of an individual multi-layer via. Dr. Johnson constructs a working large-scale model of a via, large enough so that he can reach into the board and modify the structure from within while observing, in real time, the electrical behavior of the via. The presentation emphasizes the importance of good interplane connections near those locations where high-speed signals traverse vertically through your layer stack. Format: clv