Tube Substitutions for:
EL504
Beam Power Tube
| Type | Substitutes | Base Diagram |
|---|---|---|
| EL504 |  | |
| Web References | EL504 (Mazda-Belvu) @ Franks Electron Tubes EL504 @ RadioMuseum.org | |
Beam Power Tube
MECHANICAL DATA
| Basing | 9NH |
| Type | Substitutes | Base Diagram |
|---|---|---|
| EL504 | | |
| Web References | EL504 (Mazda-Belvu) @ Franks Electron Tubes EL504 @ RadioMuseum.org | |
| Basing | 9NH |