Tube Substitutions for:
40FR5
Pentode
| Type | Substitutes | Base Diagram |
|---|---|---|
| 40FR5 |  | |
| Web References | 40FR5 (Tung-Sol) @ Franks Electron Tubes 40FR5 @ RadioMuseum.org | |
Pentode
MECHANICAL DATA
| Basing | 7CV |
ELECTRICAL DATA
HEATER CHARACTERISTICS
| Heater Voltage | 40 | Volts |
| Heater Current | 0.10 | A |