Tube Substitutions for:
281
Half-Wave High-Vacuum Rectifier
| Type | Substitutes | Base Diagram |
|---|---|---|
| 281 |  | |
| Web References | 281 @ RadioMuseum.org | |
Half-Wave High-Vacuum Rectifier
MECHANICAL DATA
| Basing | 4B |
ELECTRICAL DATA
HEATER CHARACTERISTICS
| Heater Voltage | 7.5 | Volts |
| Heater Current | 1.25 | A |