Tube Substitutions for:
2D21W
Tetrode (Thyratron)
| Type | Substitutes | Base Diagram |
|---|---|---|
| 2D21W | 5727 |  |
| Web References | 2D21W (Tung-Sol) @ Franks Electron Tubes | |
Tetrode (Thyratron)
MECHANICAL DATA
| Basing | 7BN |
ELECTRICAL DATA
HEATER CHARACTERISTICS
| Heater Voltage | 6.3 | Volts |
| Heater Current | 0.6 | A |