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TABLE I:     TUBES WITH ELECTRICAL CHARACTERISTICS
                SIMILAR TO MANUAL CURVES (Contd.)
                                                                                                                .
   Tube Type         Classification        RETMA 'Base         "Manual" Equivalent

EK90, HK90                 EK9                     7CH                    6BE6 (I)
 EL90, HL90                 EL9                     7BZ                    6005 (I-F-P)
 HM04                         HK9                     7CH                    6BE6 (I)
 L63                            EC3                     6Q                      6J5 (I)
 NR77                          EL3                     7AC                    6L6 (I)

 A4073F                       EF3                     8N                      6134 (l-P)
 A4273F                      ECC3                                              6J5 (11)
 A4434                        ECC9                   7BF                     6J6 (I)
 A4450                         EL9                     7BZ                     6005 (I-P)
 A4475                        ECC3                   8BD                     6AS7G (I)

 A4524A                       EF9                    7CM                    6BH6 (I)
 A4541A                       EL8                    9K                       5763 (I)
 PM04                          EFR8                 7BK                      5749 (I-P)
 PM05                          EF9                   7BD                      6AK5 (I)
 QM328                        EL8                    9G                       5686 (I)

 T2M05                         ECC9                7BF                      6J6 (I)
 TS229                         ECC8                 9H                       5687 (I)
 X107                           BK9                   7CH                     6BE6 (I-F)
 Z2096                          EC9                   6BG                     5814A (I-P)
 Z2101                          ECC8                 9A                       12AY7 (I-P)
 

 RETMA BASES

5AC-2       1-H       2-P                                     6-G     7-K      8-H
5BT-3                  2-H      3-KG3             5-G1              7-H      8-G2         Cap-P
5CE-9     1-P        2-IS     3-H       4-H                6-G     7-K
6AA-2     1-H        2-P     3-G2                          6-G1    7-KG3  8-H
6AM-3                 2-H                 4-G2    5-G1              7-H       8-KG3      Cap-P

6BG-9     1-P       2-IC     3-H       4-H      5-P      6-G     7-K
6BQ-3     1-KBFP           3-P                  5-G2    6-H     7-G1     8-H
6CK-3     1-G1     2-H      3-KG3              5-P                7-H       8-G2
6Q-3       1-S       2-H      3-P                  5-G                7-H       8-K
7AC-3                 2-H      3-P       4-G2    5-G1              7-H       8-KG3

7BD-9     1-G1     2-K      3-H       4-H      5-P      6-G2    7-KG3lS
7BF-9     1-PT2   2-PT1   3-H       4-H      5-GT1   6-GT2  7-K
7BK-9     1-G1    2-G3     3-H       4-H      5-P      6-G2    7-K
7BP-Sp   1-H      2-G1T2  3-G2    4-KG3  5-HCT  6-G1T1 7-H                      Cap I-PT2    Cap 2-PT1

7BZ-9     1-G1    2-KBFP 3-H      4-H       5-P      6-G2    7-G1
 

                                                                                                                            31.

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Copyright 2008 for Phyllis K. Pullen, M.D.,
by Robert J. Legg