Tube-number record
95108
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BrandPhilips
ClassTransmitting Pentode
BaseSubminiature
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialDirectly Heated
Absolute Maximum Ratings
Plate Voltage120 V
Plate Dissipation1 W
Grid 2 Voltage120 V
Cathode Current16 mA
Audio Performance
Power Output0.75 W
Key Features
- Subminiature
- Direct heating
- Designed for radio sondes
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 45 V | 650 | 750000 | 9.5 | 0.875 mA |
| Triode-connected oscillator | 120 V | — | — | — | 15 mA |
Application Notes
Life expectancy 5 hours in radio sonde operation. Positive pole of filament battery should be connected to -f connection.
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