Tube Substitutions for:
1P11
Vacuum Pentode
| Type | Substitutes | Base Diagram |
|---|---|---|
| 1P11 | 3C4*, 3E5*, 3V4WA, 3V4 |  |
| Notes: | * - Parallel filaments | |
| Web References | 1P11 @ RadioMuseum.org | |
Vacuum Pentode
MECHANICAL DATA
| Basing | 6BX |
| Type | Substitutes | Base Diagram |
|---|---|---|
| 1P11 | 3C4*, 3E5*, 3V4WA, 3V4 | |
| Notes: | * - Parallel filaments | |
| Web References | 1P11 @ RadioMuseum.org | |
| Basing | 6BX |