Very sad news: Jim Williams of Linear Technology Corp—one of the world's best analog-circuit designers, experimenter, hands-on guy, project genius, damn nice guy, story teller, mentor, eternal student, engineer, collector of historical scientific instruments, master of true and measurable precision and accuracy, and much more—passed away unexpectedly. Many of you know of him though his detailed, voluminous application notes, or his many articles inEDN.