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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 |
| 5AR4 5AS4 5AU4 5AW4 5AX4 5BK7A 5BQ7A 5BR8 5BS8 5BZ7 5CG4 5CG8 5CM6 5DB4 5DH8 5DJ4 5EA8 5EW6 5FV8 5GH8 5GJ7 5GM6 5GX7 5JK6 | GZ34 5AS4A 5DB4 5U4GB 5V3 5V3A 5V3 5V3A 5AS4 5AS4A 5AU4 5DB4 5R4G 5U4GA 5U4GB 5V3 5V3A 5AXR4 5AS4 5AS4A 5R4G 5T4 5U4GA 5U4GB 5V4 4BC8 4BQ7A 4BS8 4BX8 4BZ7 4BZ8 5BS8 5BZ7 5FV8 5BQ7A 5BZ7 5BQ7A 5BS8 5AR4 5V4 5Z4 5FG7 5CZ5 5AS4 5AS4A 5U4GB 5FV8 5DN4 5U8 5GM6 5BR8 5EA8 5U8 5GX7 5EW6 5GJ7 5EW6 5JL6 | 5JL6 5T4 5U4G 5U4GA 5U4GB 5U8 5V3 5V4 5W4 5X3 5Y3 5Z3 5Z4 | 5EW6
5JK6 5AR4 5R4 5U4GA 5U4GB 5AR4 5AS4 5AS4A 5AU4 5DB4 5R4 5T4 5V3 5931 5U4GB 5AS4 5AS4A 5AU4 5DB4 5R4 5V3 5AS4 5AS4A 5AU4 5DB4 5V3 5V3A 5EA8 5V3A 5AU4 5V4GA 5AR4 GZ32 5AR4 5CG4 5R4 5T4 5V4 5Y3 5Z4 13 80 83V 88 5AR4 5AX4 5CG4 5R4 5T4 5V4 5Z4 6087 6106 83 1275 5AR4 5CG4 5V4 6087 GZ30 |
Last update: 23 Mar. 2008