January 1970 v. 21 n.5 Cover: Operator uses optical comparator to check alignment of helical electrodes in new 250MHz Oscilloscope’s cathode-ray tube A DC-to-VHF Oscilloscope. Displaying intermittent pulse trains with nanosecond risetimes, capturing fast transients, a predetector look at amplitude-modulated carriers – these are some of the tasks performed by a new general-purpose oscilloscope that … Continue reading 1970 – HP Journal Index