Vu Data made good products. Their main line was multi channel monitoring scopes for instrumentation tape recorders 7, 14, or 28 tracks or more. The Vu Data monitors seemed better than others made in the era, by Honeywell. I remember Vu Dat brought out a general use oscilloscope, but by that time we had 7 Philips in our lab at work. Stuart Rohre K5KVH