DL73
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BrandMullard
ClassOutput Pentode
BaseB8D/F Subminiature
Construction
Primary TypePentode
EnvelopeSubminiature Glass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage150 V
Plate Dissipation2 W
Grid 2 Voltage150 V
Grid 1 Voltage-70 V
Cathode Current25 mA
Audio Performance
Typical THD10%
Power Output0.9 W
Key Features
- Subminiature
- V.H.F. Output Pentode
- Battery-operated
- Push-to-talk life rating
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Characteristics | 100V | 2500 | 16000 | 6 | 15mA |
| Class A Amplifier | 150V | 2500 | 10000 | - | 13mA |
Application Notes
Continuous life rating is relatively short and is a function of hours of filament operation. Under push-to-talk conditions, an operating life of 200 hours may be expected.
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