MIL-E-1/900 › Complete Document History
Electron Tube, Gas Types Sn4 and 631P1


Obsolete Revision Information:
   REV B CANCELLATION 1 - ELECTRON TUBE, GAS TYPES SN4 A - April 25, 1969
   REVISION B - Electron Tube, Gas Types SN4 and 631P1 - Feb. 11, 1966