KF2
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BrandPhilips Miniwatt
ClassPentode
Construction
Primary TypeH.F. Pentode
EnvelopeGlass
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage135 V
Grid 2 Voltage135 V
Grid 1 Voltage-16 V
Audio Performance
Key Features
- Variable-mu (Selektode)
- High gain at low plate voltages
- Battery-operated
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. Amplifier | 135V | 1300 | 1100000 | 1400 | 3mA |
| H.F. Amplifier | 90V | 800 | 1900000 | 1500 | 1.4mA |
Application Notes
Specifically designed for battery-operated radio receivers as a high-frequency (HF) or intermediate-frequency (IF) amplifier with automatic volume control.
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