Tube Substitutions for:
27S
Low Mu Triode
| Type | Substitutes | Base Diagram |
|---|---|---|
| 27S | 27, 56, 56S, 27A* |  |
| Notes: | * - Parallel filaments | |
| Web References | 27S @ RadioMuseum.org | |
Low Mu Triode
MECHANICAL DATA
| Basing | 5A |
ELECTRICAL DATA
HEATER CHARACTERISTICS
| Heater Voltage | 2.5 | Volts |
| Heater Current | 1.75 | A |