Tube Substitutions for:
X155
Double Triode
| Type | Substitutes | Base Diagram |
|---|---|---|
| X155 | 6BK7*, 6BK7A*, 6BK7B*, 6BQ7, 6BQ7A, 6BS8, 6BX8, 6BZ7, 6BZ8, 6HK8, X6BC8 |  |
| Notes: | * - Parallel filaments | |
| Web References | X155 @ RadioMuseum.org | |
Double Triode
MECHANICAL DATA
| Basing | 9AJ |