Tube Substitutions for:
DH77
Double Diode-Triode
| Type | Substitutes | Base Diagram |
|---|---|---|
| DH77 | 6AQ6*, 6AV6, 6BK6, 6BT6, 6AT6 |  |
| Notes: | * - Parallel filaments | |
| Web References | DH77 (Marconi) @ Franks Electron Tubes DH77 @ RadioMuseum.org | |
Double Diode-Triode
MECHANICAL DATA
| Basing | 7BT |