Type | Substitutes | Base Diagram |
---|---|---|
37 | 76, 37A, 56A*, 56AS*, 67*, 67A* | |
Notes: | * - Parallel filaments | |
Web References | 37 (RCA) @ Franks Electron Tubes 37 (Sylvania) @ Franks Electron Tubes 37 (Tung-Sol) @ Franks Electron Tubes 37 @ RadioMuseum.org |
Basing | 5A |
Heater Voltage | 6.3 | Volts |
Heater Current | 0.3 | A |