Tube-number record
KF3
0 archive entries
BrandPhilips
ClassPENTODE with variable mu
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialDirectly heated
Absolute Maximum Ratings
Plate Voltage135 V
Plate Dissipation0.5 W
Grid 2 Voltage135 V
Grid 1 Voltage-2 V
Cathode Current5 mA
Audio Performance
Key Features
- Variable mu
- Battery operated
- High Frequency amplifier
- Intermediate Frequency amplifier
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Operating characteristics (Va 90V) | 90 V | 650 | 2000000 | 1000 | 1 mA |
| Operating characteristics (Va 135V) | 135 V | 850 | 2300000 | 850 | 2 mA |
Application Notes
Pentode with variable mu for use as H.F. and I.F. amplifier. Directly heated by battery in parallel supply.
Datasheets
Datasheet: KF3.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results