MIL-E-1/968 › Complete Document History
Electron Tube, Thyratron Type 1257 (Superseded by MIL-E-1/1658 Now MIL-PRF-1/1658)


Obsolete Revision Information:
   REV E CANCELLATION 1 - ELECTRON TUBE, THYRATRON TYPE - April 23, 1983
   REVISION E - Electron Tube, Thyratron Type 1257 - Dec. 30, 1977