Tube Substitutions for:
3B7
High Frequency Twin Triode
| Type | Substitutes | Base Diagram |
|---|---|---|
| 3B7 | 1291, 3B7/1291 |  |
| Web References | 3B7 (Tung-Sol) @ Franks Electron Tubes 3B7 @ RadioMuseum.org | |
High Frequency Twin Triode
MECHANICAL DATA
| Basing | 7BE |
ELECTRICAL DATA
HEATER CHARACTERISTICS
| Heater Voltage | 2.8/1.4 | Volts |
| Heater Current | 0.11/0.22 | A |