The LBO-516 is a 100 MHz oscilloscope with all of the features normally found on a lab-grade scope: highfidelity pulse response, stable operation, dual timebase with calibrated sweep delay, flexible triggering facilities, and a bright CRT display with illuminated internal graticule. Moreover, it also has a very unusual feature found on few scopes in any price class: it can simultaneously display up to eight traces from three different input signals! In addition to the two vertical-input channels and their difference signal, the signal used to externally trigger the main timebase can also appear on the CRT display. The alternate sweep mode, which allows the main and delayed timebases to simultaneously sweep the CRT, effectively doubles this four-trace display to an eight-trace display. The comprehensive triggering facilities of the LBO-516 include several features that ease the problem of triggering on complex signals: a variety of frequency-selective coupling filters, a trigger holdoff-control, and a trigger pickoff that alternates between the two vertical channels.