Tube-number record
2DX4
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BrandWestinghouse
ClassUHF Triode
BaseMiniature 7-pin (B7G)
Filament2.4 V @ 0.6 mA
Construction
Primary TypeTriode
EnvelopeT5-1/2
Sections1
Filament / Heater
Heater NotesControlled warm-up time
Absolute Maximum Ratings
Plate Voltage150 V
Plate Dissipation2.2 W
Grid 1 Voltage-50 V
Cathode Current20 mA
H-C Voltage100 V
Audio Performance
Key Features
- Double connections to plate and grid
- Controlled heater warm-up characteristic
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| UHF Oscillator at 1000 Mc | 100 V | 11000 | 2700 | 30 | 14 mA |
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