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SIMILAR TO MANUAL CURVES (Contd.)
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Tube Type Classification RETMA 'Base "Manual" EquivalentEK90, 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-P6BG-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-KG37BD-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-PT17BZ-9 1-G1 2-KBFP 3-H 4-H 5-P 6-G2 7-G1
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Copyright 2008 for Phyllis K. Pullen, M.D.,
by Robert J. Legg