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E80CF - Special Quality Long Life Pentode
page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 E80CF sheet 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 A B date 1958.12.12 1960.10.10 1962.08.08 1958.12.E80CF - S.Q. Tube
page 1 2 3 4 5 6 7 8 9 10 11 E80CF sheet 1 2 3 4 5 6 7 8 9 10 FP date 1968.12 1968.12 1968.12 1968.12 1968.12 1968.12 1968.12 1968.12 1968.12 1968.1.