Thanks David.? Yes, I knew that Krohn-Hite took over EDC in 1998 and I contacted the Service Dept last night.
To my amazement the Service Manager at Krohn-Hite sent me a pdf of the Service/Calibration/Schematics first thing this morning.
Amazing, not many companies would do that now.
The manual you found is also useful so I thank you for that.
--Victor
