MIL-E-1/1731 Revision A, April 18, 1974
ELECTRON TUBE, TYPE DOD-020
Includes all amendments and changes through Amendment 1, June 14, 1976
This specification is approved 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.