Tube Substitutions for:
21A7
Triode Hexode Converter
| Type | Substitutes | Base Diagram |
|---|---|---|
| 21A7 |  | |
| Web References | 21A7 @ RadioMuseum.org | |
Triode Hexode Converter
MECHANICAL DATA
| Basing | 8AR |
ELECTRICAL DATA
HEATER CHARACTERISTICS
| Heater Voltage | 21 | Volts |
| Heater Current | 0.16 | A |