Tube Substitutions for:
40
Medium Mu Triode
| Type | Substitutes | Base Diagram |
|---|---|---|
| 40 |  | |
| Web References | 40 (RCA) @ Franks Electron Tubes 40 (Sylvania) @ Franks Electron Tubes 40 @ RadioMuseum.org | |
Medium Mu Triode
MECHANICAL DATA
| Basing | 4D |
ELECTRICAL DATA
HEATER CHARACTERISTICS
| Heater Voltage | 5 | Volts |
| Heater Current | 0.25 | A |