5899
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BrandMullard
ClassVariable-mu R.F. Pentode
BaseB8D/F
Filament6.3V @ 150mA
Construction
Primary TypePentode
EnvelopeSubminiature
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage165 V
Plate Dissipation0.75 W
Grid 2 Voltage155 V
Grid 1 Voltage-55 V
Cathode Current16.5 mA
H-C Voltage200 V
Audio Performance
Key Features
- Special Quality
- Subminiature
- Variable-mu
- Vibration and Shock Resistant
- High Ambient Temperature
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| R.F. Amplifier | 100V | 4500 | 175000 | - | 7.2mA |
Application Notes
Direct soldered connections must be at least 5mm from the seal. Any bending of leads must be at least 1.5mm from the seal.
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