MIL-E-1/963 › Complete Document History
Electron Tube 6690 (No Superseding Document)/S DOC.+
Obsolete Revision Information: |
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REV A CANCELLATION 1 - ELECTRON TUBE 6690 (NO SUPERSE - Jan. 22, 1964
REVISION A - Electron Tube 6690 - May 9, 1956 |