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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 |
| 3A3 3A4 3A5 3AF4A 3AU6 3AW3 3B2 3B4 3B5 3B7 3BA6 3BC5 3BE6 3BU8 3BX6 3BY6 3BY7 3BZ6 3C4 3C5 3CA3 3CB6 3CE5 3CF6 3CS6 3CY5 3DK6 3DZ4 3E5 3EA5 3EH7 3EJ7 | 3AW3
3CA3 DL93 DCC90 3AF4B 3AU6 3A3 3CA3 3A3 3AW3 DL98 3C5 3Q5 1291 3AU6 3CE5 3BY6 3CS6 3BU8A 3GS8 3HS8 3KF8 3BY7 3BE6 3CS6 3BX6 3CB6 3CF6 3DK6 3E5 3B5 3Q5 3A3 3AW3 3BZ6 3CF6 3DK6 3CB5 3BZ6 3CB6 3DK6 3BE6 3BY6 3EA5 3EV5 3BZ6 3CB6 3CF6 3AF4B 3C4 3EV5 3EJ7 3EH7 | 3ER5 3EV5 3FH5 3FQ5 3FS5 3FY5 3GK5 3GS8 3GU5 3HA5 3HK5 3HM5 3HM6 3HQ5 3HS8 3HT6 3KF8 3LE4 3LF4 3Q4 3Q5 3S4SF 3V4 3W4 3Z4 | 3FQ5
3FQ5A 3FY5 3EA5 3ES5 3FQ5 3FQ5A 3GK5 3FQ5A 3ES5 3GK5 3GU5 3ER5 3FQ5 3FQ5A 3BU8 3BU8A 3HS8 3KF8 3FS5 3HK5 3HM5 3HQ5 3HA5 3HM5 3HQ5 3HA5 3HK5 3HQ5 3HT6 3HA5 3HK5 3HM5 3BU8 3BU8A 3GS8 3KF8 3HM6 3BU8 3BU8A 3GS8 3HS8 3LF4 3Q5GT 3S4 3B5 3C5 3W4 3Z4 3Q4 1P11 3S4SF 3Z4 3S4SF 3W4 |
Last update: 23 Mar. 2008