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Tube Interchangability Reference

The following should be direct substitutions. To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a substitution. Tubes in the "Tube" column are directly replaceable with tubes in the "Replacement" column. The reverse will not necessarily be a correct replacement. Please report any errors.

Tube prefix selection

0 1 2 3 4 5 6 7 8 9 10 12 13-117 VT Numeric Letter

Tube	Replacement	Tube	Replacement
13DE7 13DR7 13EM7 13FD7 13FR7 13V10 14A7 14AF7 14C7 14E7 14GT8 14H7 14J7 14JG8 14R7 14S7 15AB9 15AF11 15BD11 15EA7 16A5 17A8 17AB9 17AX3 17AX4GT 17AX4GTA 17AY3 17AY3A 17BQ6GTB 17BZ3 17C5 17CQ4 17CU5 17D4 17D4A 17DE4 17DM4 17DQ6 17DQ6A 17DQ6B 17GW6 17L6GT 17W6GT 18FW6 18FW6A 18FY6 18FY6A 18GD6 18GD6A 18GE6 18GE6A 19AU4 19AU4GT	15EW7 13FD7 13FR7 15EA7 13FR7 13FD7 12AE10 12B7 14H7 XXD 1280 14R7 14GT8A 14JG8 7724 12B7 14A7 14S7 14GT8 14GT8A 14E7 14J7 17AB9 15BD11 15AF11 13EM7 15CW5 19EA8 19EA8A 15AB9 17BE3 17AX4GTA 17D4 17D4A 17DM4 17DM4A 17DQ4 17D4 17D4A 17DM4 17DM4A 17DQ4 17AY3A 17BS3 17BS3A 17AY3 17BS3 17BS3A 17DQ6 17DQ6A 17DQ6B 17GW6 17BE3 17BE3A 17CU5 17R5 17DE4 17C5 17R5 17D4A 17AX4GTA 17DM4 17DM4A 17DQ4 17DM4 17DM4A 17DQ4 17CQ4 17DM4A 17D4A 17DQ4 17DQ6A 17DQ6B 17GW6 17DQ6B 17GW6 17GW6 17DQ6B 17W6GT 17L6GT 18FW6A 18GD6 18GD6A 18GD6A 18FY6A 18GE6 18GE6A 18GE6A 18GD6A 18FW6 18FW6A 18FW6A 18GE6A 18FY6 18FY6A 18FY6A 19AU4GT 19AU4GTA 17CQ4 17DE4 19AU4 19AU4GTA 17CQ4 17DE4	19C8 19CL8A 19DE7 19EA8 19EW7 19JN8 19T8 19Y3 20EW7 21A6 21B6 21EX6 25AX4GT 25B6G 25BQ6GA 25BQ6GTB 25CA5 25CD6G 25CD6GA 25CD6GB 25CU6 25DN6 25EC6 25EH5 25L6GT 25S 25U4GT 25W4GT 25W6GT 25Y5 25Z5 26A6 26B6 26CG6 26D6 27GB5 28GB5 30HD5 30A5 30HD5 32ET5 32ET5A 32L7 34CE3 34GD5 34GD5A 35A3 35C3 35C5 38HK7 40Z5GT 45Z5GT 50CA5 50EH5 50HK6 50Y7 50Z6 50Z7 117L7 117N7	19T8 19T8A 19CL8B 19JN8 19EW7 20EW7 19EA8A 17A8 20EW7 19CL8A 19CL8B 19T8A 19C8 19X3 19EW7 21B6 21A6 25CD6GB 25D4 5824 25BQ6GTB 25BQ6GTB/25CU6 25CU6 25DQ6 25DQ6A 25BQ6GTB/25CU6 25CU6 25DQ6 25DQ6A 25C5 25EH5 25CD6GA 25CD6GB 25DN6 21EX6 25CD6GB 25DN6 21EX6 21RX6 25BQ6GTB/25CU6 25BQ6GTB 25DQ6 25DQ6A 25CD6GB 21EX6 25CD6GB 21EX6 25CA5 25W6GT 6046 25 1B5 1B5/25S 25AX4GT 25D4 25W4GT 25AX4GT 25D4 25U4GT 25L6GT 6046 25Z5 25Y5 26CG6 26D6 26A6 26B6 28GB5 27GB5 30HD5 35C5 35C5A 28HD5 32ET5A 34GD5 34GD5A 34GD5A 25A7 34CD3 34GD5A 32ET5 32ET5A 32ET5A 35C3 35A3 35C5A 30A5 38HE7 45Z5GT 40Z5GT 50EH5 50EH5A 50EH5A 50CA5 50HC6 50Z7 50AX6 50Y7 117M7 117P7

Last update: 24 Jul. 2004