The 7201 is a signature analyser, with multimeter functionality. I don't have a manual, but it's what I used when I worked for Ruffler and Deith, back in the 1980s. At the time, HP were ridiculously expensive, so Solatron tried to enter the market. The 7201 was unstable on some boards (like Galaxian). I went on a two-day course near Reading, to learn how to use it, and spent most of the time helping the designer to improve its compatability. It didn't catch on, presumably due to its size, and the fact that the HP products actually worked reliably! I'll be happy to scratch my head over any further questions, if no one comes up with a manual. An excellent piece of nostalgia - if you decide to sell it, let me know! Mark _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com http://seven.pairlist.net/mailman/listinfo/techtoolslist