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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 | Replacement | Tube | Replacement |
| 6AB4
6AB5 6AB7 6AC7 6AD4 6AD6 6AD8 6AE5 6AF3 6AF5 6AF6 6AF11 6AG5 6AG7 6AH6 6AJ5 6AJ7 6AK5 6AK7 6AK8 6AL5 6AM5 6AM6 6AM8 6AQ5 6AR6 6AS4 6AS6 6AS7G 6AS11 6AT6 6AU4GT 6AU5GT 6AU6 6AU7 6AU8 6AV5GT 6AV6 6AW6 6AW8 6AX4 6AX4GTA 6AX8 6AY3 6AY3A 6AY3B 6B6 6BA3 6BA5 6BA6 6BA8 6BA8A 6BC5 6BC8 6BD6 6BD11 6BE6 6BF6 6BF7 6BG7 6BH6 6BH8 6BJ3 6BJ6 6BK6 6BL7GT 6BL8 6BM5 6BQ5 6BQ6GT 6BQ7 6BR5 6BR7 6BR8 6BR8A 6BS3 6BS3A 6BS8 6BT6 6BU6 6BU8 6BU8A 6BW6 6BW7 6BX6 6BX7GT 6BX8 6BY6 6BY7 6BZ6 6BZ7 6BZ8 6C4 6C5 6C6 6CA5 6CB5 6CB5A 6CB6 6CD6G 6CE3 6CF6 6CG3 6CG6 6CG8 6CG8A 6CH6 6CH7 6CJ6 6CL6 6CQ4 6CQ6 6CS5 6CS6 6CU6 6CW4 6CW7 6CX7 6CX8 6CY5 6D6 6DA4 6DA4A | 6664
6N5 6AC7 6AJ7 1853 6AB7 6AJ7 1852 6134 5637 5719 5719A 5898 6AF6 6DC8 6N8 6AF5 6BR3 6AE5 6AD6 6AS11 6BD11 6BC5 6CE5 6186 6AK7 6485 7755 6AB7 6AC7 1220 5654 6096 6968 6AG7 6T8 6T8A 6EB5 5726 6058 6097 6663 7631 6516 6064 7498 6HJ8 6AQ5A 6BM5 7HG5 6005 6095 6669 6098 6384 7756 6DM4 6DM4A 6DQ4 6DT4 5725 7752 6AS7GA 6AS7GT 6080 6520 6AF11 6BD11 6AV6 6BK6 6BT6 6066 6AU4GTA 6FW5 6AU6A 6BA6 6136 7543 7AU7 6AU8A 6AW8A 6BA8A 6BH8 6AV5GA 6FW5 6AT6 6BK6 6BT6 6066 6CB6 6CB6A 6CF6 6CD6 6DE6 6AW8A 6AU8 6AU8A 6BA8 6BA8A 6JV8 6KS8 6LF8 6AX4GTA 6AX4GTB 6AS4GT 6DA4 6DA4A 6DM4 6DQ4 6DT4 6AX4GTB 6DA4 6DA4A 6DM4 6DM4A 6DQ4 6DT4 6EA8 6GH8 6GH8A 6LM8 6U8 6U8A 6AY3A 6AY3B 6BA3 6BS3 6BS3A 6DW4 6DW4A 6DW4B 6AY3A 6AY3B 6BA3 6BS3 6BS3A 6DW4 6DW4A 6DW4B 6AY3A 6AY3B 6BA3 6BS3 6BS3A 6DW4 6DW4A 6DW4B 6Q7 6AY3 6AY3A 6AY3B 6BS3 6BS3A 6DW4 6DW4A 6DW4B 5638 6AU6 6AU6A 6BD6 6CG6 5749 6660 7496 7543 6BA8A 6AU8 6AU8A 6AW8 6AW8A 6BH8 6BA8 6AU8 6AU8A 6AW8 6AW8A 6BH8 6AG5 6CE5 6BQ7 6BQ7A 6BS8 6BX8 6BZ7 6BZ8 6HK8 X155 6BA6 6CG6 6AF11 6BY6 6CS6 5750 5915 6BU6 6BG7 6021 6BF7 6021 6661 7693 6AU8 6AU8A 6AW8 6AW8A 6BA8 6BA8A 6AX3 6BJ6A 6662 7694 6AT6 6AV6 6BT6 6BL7GTA 6BX7GT 6DN7 6EA8 6LN8 6U8 6U8A 6AQ5 6AQ5A 7189 7189A 7320 6BQ6GTA 6BQ6GTB 6BQ6GTB/6CU6 6CU6 6DQ6A 6DQ6B 6FH6 6GW6 6BQ7A 6BC8 6BS8 6BX8 6BZ7 6BZ8 6HK8 X155 6DA5 6059 6BR8A 6FV8 6FV8A 6JN8 6FV8 6FV8A 6JN8 6BS3A 6DW4 6DW4A 6DW4B 6BS3 6DW4 6DW4A 6DW4B 6BC8 6BQ7 6BQ7A 6BX8 6BZ7 6BZ8 6HK8 X155 6AT6 6AV6 6BK6 6BF6 6BU8A 6GS8 6HS8 6KF8 6BU8 6GS8 6HS8 6KF8 6061 6BX6 6EL7 6BW7 6BY7 6EL7 6BL7GT 6BL7GTA 6DN7 6BC8 6BQ7 6BQ7A 6BS8 6BZ7 6BZ8 6HK8 X155 6BE6 6CS6 6BX6 6DC6 6HQ6 6JH6 6BC8 6BQ7 6BQ7A 6BS8 6BX8 6BZ8 6HK8 X155 6BC8 6BQ7 6BQ7A 6BS8 6BX8 6BZ7 6HK8 X155 6100 EC90 6J5 6L5 77 1221 1223 7700 6EH5 6CB5A 6CL5 6CL5 6CB6A 6AW6 6CF6 6DC6 6DE6 6DK6 6HQ6 6676 7732 6DN6 6EX6 6CD3 6AW6 6CB6 6CB6A 6DC6 6DE6 6DK6 6CD3 6BA6 6BD6 6CG8A 6FG7 6FG7 6132 7499 6CX7 6DR6 6197 6297 6677 6DE4 6065 6DW5 6BE6 6BY6 6BQ6GTB 6BQ6GTB/6CU6 6DQ6 6DQ6A 6DQ6B 6FH6 6GW6 6DS4 7895 6CF7 6CH7 6EB8 6GN8 6HF8 6JA8 6JE8 6EA5 6EV5 7717 8113 78 6DA4A 6AX4GTA 6AX4GTB 6DM4 6DM4A 6DQ4 6DT4 6DM4A 6DQ4 6DT4 | 6DA5
6DB6 6DC6 6DC8 6DE4 6DE6 6DE7 6DG6GT 6DJ8 6DK6 6DM4 6DM4A 6DN6 6DQ4 6DQ6 6DQ6A 6DQ6B 6DR6 6DR7 6DS4 6EA5 6EA7 6EA8 6EB5 6EB8 6EH5 6EH7 6EJ7 6EL7 6EM7 6ES6 6ES8 6ET6 6EV5 6EW6 6EX6 6F4 6F7 6FC7 6FD6 6FD7 6FH5 6FH6 6FQ5 6FQ5A 6FR7 6FS5 6FV8 6FV8A 6FW8 6G5 6GE8 6G5 6GF5 6GH8 6GH8A 6GJ7 6GK5 6GL7 6GM6 6GN8 6GS8 6GW6 6GW8 6GX6 6GX7 6GY6 6H5 6HA5 6HF8 6HG5 6HJ8 6HK5 6HK8 6HL8 6HM5 6HM6 6HQ5 6HQ6 6HS8 6HT6 6HZ6 6J4 6J5 6J6 6J7 6JA8 6JE8 6JF6 6JH6 6JK6 6JL6 6JN8 6JS6 6JS6A 6JT8 6JV8 6JW8 6K4 6K7 6K11 6KD8 6KF8 6KM6 6KR8 6KS8 6KV8 6L4 6L5 6L6 6L7 6LB8 6LF8 6LM8 6LN8 6LY8 6N3 6N5 6N8 6Q7 6R8 6SA7 6SD7 6SE7 6SG7 6SH7 6SJ7 6SK7 6SL7 6SN7 6SQ7 6SU7 6T5 6T8 6U4GT 6U5 6U7 6U8 6U8A 6V6 6W4GT 6W4GTA 6W6 6X4 6X5 6X8 6Z3 | 6BR5
6954 6AW6 6BZ6 6CB6 6CB6A 6CF6 6DE6 6DK6 6AD8 6N8 6CQ4 6AW6 6CB6 6CB6A 6CF6 6DC6 6DK6 6HQ6 6EW7 6W6GT 6ES8 6CB6 6CB6A 6CF6 6DC6 6DE6 6HQ6 8136 6DM4A 6DA4A 6DQ4 6DT4 6DT4 6CD6G 6CD6GA 6EX6 6DT4 6DQ6A 6DQ6B 6FH6 6GW6 6DQ6B 6FH6 6GW6 6GW6 6CJ6 6FD7 6FR7 6CW4 7895 6EV5 6EM7 6GL7 6LN8 6U8A 6AL5 6CX8 6GN8 6HF8 6JE8 6CA5 6EJ7 6EH7 6BW7 6BX6 6EA7 6GL7 6ET6 6FD6 6DJ8 6ES6 6FD6 6EA5 6GM6 6CD6GA 6L4 6F7S 6CW7 6ES6 6ET6 6FR7 6ES5 6DQ6B 6GW6 6FQ5A 6GK5 6FQ5 6GK5 6FD7 6FG5 6FV8A 6BR8A 6FV8 6BR8A 6KN8 6H5 6T5 6U5 7734 6T5 6U5 6GE5 6GH8A 6EA8 6U8A 6GH8 6EA8 6U8A 6GX7 6FQ5 6FQ5A 6EA7 6EM7 6EW6 6CX8 6EB8 6HF8 6JA8 6JE8 6BU8 6BU8A 6HS8 6KF8 6DQ6B ECL86 6GY6 6HZ6 6GJ7 6GX6 6HZ6 6G5 6T5 6U5 6HK5 6HM5 6HQ5 6CX8 6EB8 6GN8 6JA8 6JE8 6AQ5A 6AM8A 6HA5 6HM5 6HQ5 6BC8 6BQ7 6BQ7A 6BS8 6BX8 6BZ7 6BZ8 X155 6BL8 6HA5 6HK5 6HQ5 6HT6 6HA5 6HK5 6HM5 6BZ6 6CB6 6CB6A 6DE6 6JH6 6BU8 6BU8A 6GS8 6KF8 6HM6 6GX6 6GY6 8532 6C5 6L5 5964 6030 6099 6101 1233 1620 7000 6CX8 6EB8 6GN8 6JE8 6JT8 6EB8 6GN8 6HF8 6JA8 6KM6 6BZ6 6HQ6 6EW6 6JL6 6EW6 6JL6 6EW6 6JK6 6BR8A 6FV8 6FV8A 6JS6A 6KD6 6JA8 6KR8 6KV8 6LK8 6LY8 6AW8 6AW8A 6KS8 6LF8 6LX8 6778 6U7 5732 6Q11 6EA8 6GH8 6GH8A 6U8 6U8A 6BU8 6BU8A 6GS8 6HS8 6JF6 6JT8 6KV8 6LB8 6LY8 6AU8 6AU8A 6AW8 6AW8A 6JV8 6LF8 6JT8 6KR8 6LB8 6LY8 6F4 6C5 6J5 6L6G 6L6GA 6L6GAY 6L6B 6L6C 6L6T 6L6X 1622 5881 5932 7581 7581A 1612 1620 6JT8 6KR8 6KV8 6LY8 6AW8 6AW8A 6JV8 6KS8 6AX8 6GH8 6GH8A 6U8A 6JT8 6KR8 6KV8 6LB8 6U3 6N5G 6AB5 6AD8 6DC8 6B6 6118 6T8 6T8A 6SB7Y 5961 6SE7 6SD7 6SH7 6006 6SG7 6006 5693 6137 6113 6SN7GTA 6SN7GTB 5692 6SQ7 6188 6G5 6H5 6U5 6T8A 6AK8 6AS4GT 6AX4GT 6AX4GTA 6AX4GTB 6DA4 6DA4A 6DM4 6DM4A 6DQ4 6DT4 6W4GT 6W4GTA 6G5 6H5 6T5 6K7 6U8A 6EA8 6LN8 ECF82 1252 6678 7731 6EA8 6LN8 6V6G 6V6GT 6V6GTA 6V6GTX 6V6GTY 6V6GX 6V6GY 5871 7408 6W4GTA 6AS4GT 6AX4GT 6AX4GTA 6AX4GTB 6DA4 6DA4A 6DM4 6DM4A 6DQ4 6DT4 6U4GT 6AX4GT 6AX4GTA 6AX4GTB 6DA4 6DA4A 6DM4 6DM4A 6DQ4 6DT4 6U4GT 6W6GT 6DG6GT 6BX4 6063 6202 6X5GT 024 024A 6X8A 1V |
Last update: 30 Jul. 2004