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Investigation of 7AK7 Processing, Emporium, Pa., March 2, 1948
(MIT Servomechanisms Laboratory, 1948-03-16)
Memorandum on a visit by project Whirlwind I research teams to investigate 7AK7 processing at the Sylvania Radio-Tube Plant at Emporium, Pa., March 2, 1948.
Discussion of 7AK7 Processing, Emporium, Pa., June 15, 1948
(MIT Servomechanisms Laboratory, 1948-06-18)
Memorandum on a discussion by project Whirlwind I research teams on 7AK7 production at the Sylvania Radio-Tube Plant at Emporium, Pa., June 1t, 1948.