Tube Substitutions for:
12HG7
Vacuum Pentode
| Type | Substitutes | Base Diagram |
|---|---|---|
| 12HG7 | 12GN7*, 12GN7A*† |  |
| Notes: | * - Parallel filaments † - Series circuit no controlled warm-up | |
| Web References | 12HG7 (RCA (HB3)) @ Franks Electron Tubes 12HG7 (RCA (RC30)) @ Franks Electron Tubes 12HG7 (RMA/EIA) @ Franks Electron Tubes 12HG7 @ RadioMuseum.org | |
Vacuum Pentode
MECHANICAL DATA
| Basing | 9BF |
ELECTRICAL DATA
HEATER CHARACTERISTICS
| Heater Voltage | 12.6 | Volts |
| Heater Current | A |