MIL-E-1/598 › Complete Document History
Electron Tube, Type 6406/QK-428
Obsolete Revision Information: |
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CANCELLATION NOTICE 1 - ELECTRON TUBE, TYPE 6406/QK-42 - Sept. 30, 1964
BASE - Electron Tube, Type 6406/QK-428 - Jan. 8, 1954 |