Tube Substitutions for:
57S
Sharp Cutoff Pentode
| Type | Substitutes | Base Diagram |
|---|---|---|
| 57S | 57 |  |
| Web References | 57S @ RadioMuseum.org | |
Sharp Cutoff Pentode
MECHANICAL DATA
| Basing | 6F |
ELECTRICAL DATA
HEATER CHARACTERISTICS
| Heater Voltage | 2.5 | Volts |
| Heater Current | 1 | A |