MIL-E-1/61 Revision C, March 30, 1970
ELECTRON TUBE, RECEIVING TYPE 12SK7Y
Includes all amendments and changes through Validation Notice 4, August 29, 2002
Additional Comments: RENUMBERED AS MIL-PRF-1/61D
The complete requirements for procuring the electron tube described herein shall consist of this document and the latest issue of Specification MIL-E-1.