[eeprof]

As a service oriented signal generator the E200 was probably the biggest seller and it does have an AVC supply which is handy at times during alignment. It also has a very accurate vernier scale which can be used to accurately repeat dial settings. I have rebuilt several and sold them to hobbyists. I also have one on my bench that I built in a crystal calibrator that produces 100KC and 1 Mhz crystal controlled heterodyne signgals and it really does a nice job. A last note: I have had to use some 1/8 inch plexiglass to make a new graticule for this model as the factory ones tend to warp very badly.
Good luck.