What to do with this.

I got this sweet looking console thing the other day. But I am not sure what it is to begin with. Its an Accutest Circuit Analyzer, and on google most of the sites just have a brief mention, but nothing that tells you what it does. Its got 5 CV modules with knobs and different scaling and a huge patch selector. My guess that it evaluates certain ICs, and has some programmed testing functions. I’ll post some more once I pop it open.