Tube-number record
KF1
0 archive entries
BrandPhilips Miniwatt
ClassH.F. Pentode
Base5-pin
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage135 V
Grid 2 Voltage135 V
Audio Performance
Key Features
- H.F.- and Z.F.-Amplifier
- Low Anode-Grid capacitance
- Battery operation
- High amplification at low voltages
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. Amplifier (High Voltage) | 135 V | 1800 | 900000 | 1600 | 3 mA |
| H.F. Amplifier (Low Voltage) | 90 V | 1000 | 1500000 | 1500 | 1.1 mA |
Application Notes
Recommended for use as an H.F. or Z.F. amplifier. Use as an audio amplifier or detector is only recommended if the speaker is external to avoid microphonic effects.
Datasheets
Datasheet: KF1.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results