Tube Substitutions for:
2S/4S
Duo Diode
| Type | Substitutes | Base Diagram |
|---|---|---|
| 2S/4S | 4S |  |
Duo Diode
MECHANICAL DATA
| Basing | 5D |
ELECTRICAL DATA
HEATER CHARACTERISTICS
| Heater Voltage | 2.5 | Volts |
| Heater Current | 1.35 | A |
| Type | Substitutes | Base Diagram |
|---|---|---|
| 2S/4S | 4S | |
| Basing | 5D |
| Heater Voltage | 2.5 | Volts |
| Heater Current | 1.35 | A |