5639
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BrandTung-Sol
ClassPentode
BaseSubminiature Button 8 Flexible Leads
Filament6.3V @ 450mA
Construction
Primary TypePentode
EnvelopeGlass Bulb
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage165 V
Plate Dissipation3.5 W
Grid 2 Voltage155 V
Cathode Current40 mA
H-C Voltage200 V
Audio Performance
Power Output0.75 W
Key Features
- Ruggedized
- Premium Tube
- Subminiature
- Shock and Vibration Resistant
- Coated Unipotential Cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 150V | 9000 | 50000 | - | 21mA |
Application Notes
Designed for use in broad band amplifier applications such as in radar and video amplifier service. Especially suited for industrial and military airborne equipment which may be subjected to severe shock and vibration.
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