MIL-E-1/327 Revision D, May 15, 1978
ELECTRON TUBE, RECEIVING TYPES 1S5 AND 1U5
Includes all amendments and changes through Notice 2, April 19, 1996
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.