UF 80
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BrandPHILIPS
ClassPentode
BaseNoval
Filament19V @ 100mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirect by A.C. or D.C.; series supply
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2.5 W
Grid 2 Voltage250 V
Grid 1 Voltage-1.3 V
Cathode Current15 mA
H-C Voltage150 V
Audio Performance
Key Features
- PENTODE for use as R.F. and I.F. amplifier
- Indirectly heated
- Series supply
- Noval base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| R.F. amplifier | 170V | 7400 | 400000 | 50 | 10mA |
Application Notes
Input resistance re1 measured at 50 Mc/s with pin 1 connected to pin 3.
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