Tube Substitutions for:
25S
Twin Diode - Medium Mu Triode
| Type | Substitutes | Base Diagram |
|---|---|---|
| 25S | 25, 1B5, 1B5/25S |  |
| Web References | 25S (Sylvania) @ Franks Electron Tubes 25S (Tung-Sol) @ Franks Electron Tubes 25S @ RadioMuseum.org | |
Twin Diode - Medium Mu Triode
MECHANICAL DATA
| Basing | 6M |
ELECTRICAL DATA
HEATER CHARACTERISTICS
| Heater Voltage | 2 | Volts |
| Heater Current | 0.06 | A |