MIL-E-1/1766 1977 Edition, June 30, 1977
ELECTRON TUBE, TYPE 8980
Additional Comments: CNCL S/S BY MIL-PRF-1/1766
This specification is approved for use by Naval Electronic Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense.
The complete requirements for procuring the electron tube described herein shall consist of this document and the latest issue of Specification MIL-E-1.