DCC90
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BrandMullard
ClassMiniature Double Triode
BaseB7G
Construction
Primary Typedouble triode
Envelopeglass
Sections2
Filament / Heater
MaterialDirectly heated
Absolute Maximum Ratings
Plate Voltage135 V
Plate Dissipation2 W
Grid 1 Voltage-30 V
Cathode Current30 mA
Audio Performance
Power Output2 W
Key Features
- Battery-operated
- Portable transmitters
- Intermittent operation
- Series or Parallel filament operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Characteristics (each section) | 90V | 1800 | 8300 | 15 | 3.7mA |
| Push-Pull R.F. Amplifier or Oscillator at 40 Mc/s (Intermittent) | 135V | - | - | - | 30mA |
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