Tube Substitutions for:
1S4
Power Pentode
| Type | Substitutes | Base Diagram |
|---|---|---|
| 1S4 |  | |
| Web References | 1S4 (RCA (HB3)) @ Franks Electron Tubes 1S4 (Tung-Sol) @ Franks Electron Tubes 1S4 (Brimar) @ Franks Electron Tubes 1S4 @ RadioMuseum.org | |
Power Pentode
MECHANICAL DATA
| Basing | 7AV |
ELECTRICAL DATA
HEATER CHARACTERISTICS
| Heater Voltage | 1.4 | Volts |
| Heater Current | 0.1 | A |