Tube-number record
KF2
0 archive entries
KF2 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Philips Miniwatt, construction Pentode, and maximum plate voltage 135 V. The archive does not yet hold a photographed example of this type.
BrandPhilips Miniwatt
ClassPentode
Construction
Primary TypePentode
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 | 135 V | 1300 | 1100000 | 1400 | 3 mA |
| H.F. Amplifier | 90 V | 800 | 1900000 | 1500 | 1.4 mA |
Application Notes
Specifically designed for battery-operated radio receivers as a high-frequency (HF) or intermediate-frequency (IF) amplifier with automatic volume control.
Datasheets
Datasheet: KF2.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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