Tube-number record
KL4
0 archive entries
KL4 is a tube type in the TubeDatabase archive (class: Output Pentode). Recorded specifications: brand Philips, construction Pentode, socket Side-contact (P-base), maximum plate voltage 135 V, and maximum plate dissipation 1 W. The archive does not yet hold a photographed example of this type.
BrandPhilips
ClassOutput Pentode
BaseSide-contact (P-base)
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialDirectly heated
Absolute Maximum Ratings
Plate Voltage135 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A (90V) | 90 V | 1800 | 150000 | 13 | 4.7 mA |
| Class A (135V) | 135 V | 2100 | 130000 | 13 | 7 mA |
| Class B (135V) | 135 V | — | — | — | 9.8 mA |
Datasheets
Datasheet: KL4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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