MIL-PRF-1/21 › Complete Document History
Electron Tube, Gas Switching Type 1B23


Obsolete Revision Information:
   REV D CANCELLATION 1 - CANCELLATION NOTICE 1 FOR REVISION D - Sept. 4, 2014
   REVISION D - Electron Tube, Gas Switching Type 1B23 - Jan. 4, 2008
   REV C INACTIVATION 1 - INACTIVATION NOTICE 1 FOR REVISION C - Dec. 11, 2002
   REVISION C - ELECTRON TUBE, GAS SWITCHING T - July 1, 1997