Tube Substitutions for:
12F31
Vacuum Pentode
| Type | Substitutes | Base Diagram |
|---|---|---|
| 12F31 | 12GW6 |  |
| Web References | 12F31 (Tesla) @ Franks Electron Tubes 12F31 @ RadioMuseum.org | |
Vacuum Pentode
MECHANICAL DATA
| Basing | 6AM |
| Type | Substitutes | Base Diagram |
|---|---|---|
| 12F31 | 12GW6 | |
| Web References | 12F31 (Tesla) @ Franks Electron Tubes 12F31 @ RadioMuseum.org | |
| Basing | 6AM |