Tube Substitutions for:
6H31
Pentagrid-Converter (Heptode)
| Type | Substitutes | Base Diagram |
|---|---|---|
| 6H31 | 5750, 6BE6W, 6BY6, 6CS6, 7502*, 6BE6 |  |
| Notes: | * - Parallel filaments | |
| Web References | 6H31 @ RadioMuseum.org | |
Pentagrid-Converter (Heptode)
MECHANICAL DATA
| Basing | 7CH |