Contemporary with the RCA-EMU-3H microscope, the USDA Forest Service Forestry Research Laboratory, a federal research laboratory on the OSU campus, acquired a Philips EM 200 transmission electron microscope. This microscope was used for insect virus disease research. The microscope had vacuum-tube electronics, a manually operated - but more fool-proof -vacuum system, and was purchased with a higher capacity 35 mm roll film camera for image recording. In the late 1980’s the microscope was transferred to the Biology Department at the University of Oregon.