Tube Substitutions for:
12D4
Half-Wave High Vacuum Rectifier
| Type | Substitutes | Base Diagram |
|---|---|---|
| 12D4 | 12DM4, 12AX4, 12DQ4, 12D4A, 12AX4GTB, 12DM4A, 12DQ4 |  |
| Web References | 12D4 (RCA (HB3)) @ Franks Electron Tubes 12D4 (General Electric) @ Franks Electron Tubes 12D4 @ RadioMuseum.org | |
Half-Wave High Vacuum Rectifier
MECHANICAL DATA
| Basing | 4CG |
ELECTRICAL DATA
HEATER CHARACTERISTICS
| Heater Voltage | 12.6 | Volts |
| Heater Current | 0.6 | A |